Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
May 0312:30 AM EDT
-01:30 AM EDT
Learn how Kamakshi achieved a GMAT 675 with an impressive 96th %ile in Data Insights. Discover the unique methods and exam strategies that helped her excel in DI along with other sections for a balanced and high score.
21 May 2021, 02:01
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
63% (01:41) correct
38%
(01:34)
wrong
based on 128
sessions
History
Date
Time
Result
Not Attempted Yet
Factors such as low salivary buffering capacity, high incidence of bacteria, and an above-average plaque index contribute to an acidic environment around the tooth's enamel that may cause cavities, although this does not occur evenly in all cases.
A. contribute to an acidic environment around the tooth's enamel that may cause cavities, although this
B. may cause cavities by contributing to an acidic environment around the tooth's enamel, but this cavity formation
C. contributes to an acidic environment around the tooth's enamel that may cause cavities although this
D. may cause cavities by contributing to an acidic environment around the tooth's enamel, but this cavity formation would not
E. contribute to an acidic environment around the tooth's enamel that may cause cavities, although bacteria
A. contribute to an acidic environment around the tooth's enamel that may cause cavities, although this
B. may cause cavities by contributing to an acidic environment around the tooth's enamel, but this cavity formation
C. contributes to an acidic environment around the tooth's enamel that may cause cavities although this
D. may cause cavities by contributing to an acidic environment around the tooth's enamel, but this cavity formation would not
E. contribute to an acidic environment around the tooth's enamel that may cause cavities, although bacteria
29 May 2021, 03:15
Kudos
Bookmarks
OFFICIAL EXPLANATION
Factors such as low salivary buffering capacity, high incidence of bacteria, and an above-average plaque index contribute to an acidic environment around the tooth's enamel that may cause cavities, although this does not occur evenly in all cases.
A. contribute to an acidic environment around the tooth's enamel that may cause cavities, although this
Incorrect.
This answer choice is stylistically flawed. The pronoun this is ambiguous because it may refer to a singular noun which preceded it - for instance, environment - or to a situation, such as the formation of cavities.
It is true that stylistic mistakes are not always corrected. However, since there is an answer choice that does address the issue of ambiguity, it is preferable to this one.
What helps us identify this question as a Pronoun question as well as identify the ambiguity mistake is the following Stop Sign: Every pronoun in the underlined part of the sentence or after it
B. may cause cavities by contributing to an acidic environment around the tooth's enamel, but this cavity formation
This answer choice resolves the Pronoun ambiguity in the original question, by specifying that this refers to cavity formation.
Notice that the restructuring of the sentence does not change its essential meaning.
C. contributes to an acidic environment around the tooth's enamel that may cause cavities although this
Incorrect.
This answer choice repeats the original mistake. The pronoun this is ambiguous because it may refer to a singular noun which preceded it - for instance, environment - or to a situation, such as the formation of cavities.
What helps us identify this question as a Pronoun question as well as identify the ambiguity mistake is the following Stop Sign: Every pronoun in the underlined part of the sentence or after it
In addition, this answer choice is grammatically incorrect. The plural noun Factors does not agree with the singular verb contributes.
What helps us identify this mistake is the following Stop Sign: A long complex subject / a long distance between the subject and the verb
D. may cause cavities by contributing to an acidic environment around the tooth's enamel, but this cavity formation would not
Incorrect.
Although this answer choice corrects the original ambiguity mistake, it does not fit into the original sentence. The resulting sequence would not does not is ungrammatical.
E. contribute to an acidic environment around the tooth's enamel that may cause cavities, although bacteria
Incorrect.
Although this answer choice corrects the original ambiguity mistake, it is grammatically incorrect. The plural subject bacteria (the singular form is bacterium) does not agree with the singular verb does.
General Discussion
21 May 2021, 03:23
Kudos
Bookmarks
A. contribute to an acidic environment around the tooth's enamel that may cause cavities, although this
'this' makes this choice ambiguous. Incorrect.
B. may cause cavities by contributing to an acidic environment around the tooth's enamel, but this cavity formation
Correct. No ambiguity, and grammatically correct.
C. contributes to an acidic environment around the tooth's enamel that may cause cavities although this
'contributes' is singular while we need the plural 'contribute'. Once again, the use of 'this' makes this choice ambiguous. Incorrect.
D. may cause cavities by contributing to an acidic environment around the tooth's enamel, but this cavity formation would not
Would make the sentence '... would not does not occur..' Makes no sense. Incorrect.
E. contribute to an acidic environment around the tooth's enamel that may cause cavities, although bacteria
Would be, "..., although bacteria does not occur..." 'Bacteria' is plural while 'does' is singular. Incorrect.
'this' makes this choice ambiguous. Incorrect.
B. may cause cavities by contributing to an acidic environment around the tooth's enamel, but this cavity formation
Correct. No ambiguity, and grammatically correct.
C. contributes to an acidic environment around the tooth's enamel that may cause cavities although this
'contributes' is singular while we need the plural 'contribute'. Once again, the use of 'this' makes this choice ambiguous. Incorrect.
D. may cause cavities by contributing to an acidic environment around the tooth's enamel, but this cavity formation would not
Would make the sentence '... would not does not occur..' Makes no sense. Incorrect.
E. contribute to an acidic environment around the tooth's enamel that may cause cavities, although bacteria
Would be, "..., although bacteria does not occur..." 'Bacteria' is plural while 'does' is singular. Incorrect.
