OFFICIAL EXPLANATIONProject SC Butler: Sentence Correction (SC1)
For SC butler Questions Click Here• Note: I included all analysis provided by
Magoosh Official Explanation (rephrased in places) but added some of my own analysis.
THE PROMPTQuote:
The word "mathematics" has no generally accepted definition: the numerical and algebraic relationships, which is how the word is popularly understood, doesn't have much to do with the issues at the forefront of the field.
NOTE: when a colon is separates two parts of a sentence, only the first part must be an independent clause.
The second part can be and often is
not a full clause—if that second part is a list, identifies something, adds emphasis, or is part of dialogue.
→
He did tours in three countries: Iraq, Afghanistan, and Syria.→
He had only one aspiration: power.What comes after a colon
can be an independent clause.
Their guilt was obvious: they could not look me in the eye. By contrast, a
semicolon must always come between two independent clauses.
THE OPTIONSQuote:
A) The word "mathematics" has no generally accepted definition: the numerical and algebraic relationships, which is how the word is popularly understood, doesn't have much to do with the issues at the forefront of the field.
• Subject/verb agreement
The relative pronoun
which is the subject of the relative clause that follows.
The word
which refers to "numerical and algebraic relationships"— which is plural and requires a plural verb.
The singular verbs
is and
doesn't do not match the plural subject
relationships.
• Diction/ Style and Usage
The construction
doesn't have much to do with is very casual and sloppy and would not appear in formal academic writing or on the GMAT.
Eliminate A
Quote:
B) The word "mathematics" has no generally accepted definition: what the word means for most people, numerical and algebraic relationships, do not have a relationship with the issues at the forefront of the field.
• Subject/verb agreement
In this option, a
clause (
what the word means for most people) is the subject of the verb.
(That construction is called a noun clause. To learn about noun clauses and to see examples, go to my post
here.)
A noun clause is construed as a singular subject.
So the clause
what the word means for most people is singular, but there's a plural verb (do not have).
We face another SVA error.
• Diction/ Style and Usage
Option B also contains a too casual, sloppy, and unfortunate construction:
have a relationship with. Eliminate B
Quote:
C) The word "mathematics" has no generally accepted definition: the popular definition of the word, numerical and algebraic relationships, [VERB?] both irrelevant to the issues at the forefront of the field.
• The Case of the Missing Verb
This construction lacks a verb, so what follows the colon is not an independent clause.
This scenario is tricky.
If two sentences are joined by a colon, the first sentence
must be a full clause.
The second part of the construction
can be an independent clause but does not have to be so.
What follows a colon can simply be a noun or a noun-phrase if we are giving examples or providing an identity.
"... chamber music: string quartets, piano trios, and so forth."
"... the second-largest country on Earth: Canada."
In option C, what immediately precedes the colon is the phrase
generally accepted definition. What follows the clause is not going to be an example of
generally accepted definition, because the first part says it doesn't exist; consequently, what comes
after the colon is affected.
What we need here is additional clarification, precisely because the fact stated in the first part of the sentence may seem surprising to some people.
That is, we need an explanation of
why the word "mathematics" has no generally accepted definition, and an explanation requires a full clause after the colon.
Thus, we need a full clause after the colon.
A full clause contains a verb. No verb exists in the second part, so this choice commits the famous missing verb mistake.
Eliminate C
Quote:
D) The word "mathematics" has no generally accepted definition: what is popularly understood of the word—numerical and algebraic relationships—has little bearing on the issues at the forefront of the field.
This version is elegant and sophisticated.
It correctly sets off the examples in double em-dashes.
The phrase
has little bearing on is a very sophisticated phrase.
This entire choice is problem-free.
KEEP
Quote:
E) The word "mathematics" has no generally accepted definition: what most people think about—numerical and algebraic relationships—are irrelevant to the issues at the forefront of the field.
• Subject/verb agreement
The singular subject
what most people think about (a noun clause) does not agree with the plural verb
are.
• Diction/ Style; Usage; Logic
The phrase "what most people think about" is colloquial.
The phrase is also logically imprecise. Do most people out there think about numerical and algebraic relationships?
Eliminate E.
The answer is (D).COMMENTSThese answers are quite good.
Happy kudos.