Bunuel wrote:
Carbon emissions from transportation vehicles in the US
have amounted to 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent compared to emissions in 1990, while accounting for 27 percent of the total sum of carbon emissions.
A. have amounted to 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent compared to emissions in 1990, while accounting for 27 percent of the total sum of carbon emissions
B. has amounted to a total sum of 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent compared to emissions in 1990, while accounting for 27 percent of the total sum of carbon emissions
C. has amounted to 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent compared to emissions in 1990, while accounting for 27 percent of the total sum of carbon emissions
D. have amounted to 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent compared to emissions in 1990, while accounting for 27 percent carbon emissions
E. have amounted to 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent more compared to emissions in 1990, while accounting for 27 percent of the total sum of carbon emissions
OFFICIAL EXPLANATION
Carbon emissions from transportation vehicles in the US have amounted to 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent compared to emissions in 1990, while accounting for 27 percent of the total sum of carbon emissions.A. have amounted to 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent compared to emissions in 1990, while accounting for 27 percent of the total sum of carbon emissions
The original sentence is grammatically correct and the best option stylistically.B. has amounted to a total sum of 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent compared to emissions in 1990, while accounting for 27 percent of the total sum of carbon emissions
Incorrect.
This answer choice is grammatically incorrect. The plural subject carbon emissions does not agree with the singular verb has.
What helps you identify this question as a Subject Verb Agreement question as well as identify this mistake is the following Stop Sign:
A long complex subject / a long distance between the subject and the verb
In addition, this answer choice is more wordy than the original sentence.C. has amounted to 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent compared to emissions in 1990, while accounting for 27 percent of the total sum of carbon emissions
Incorrect.
This answer choice is grammatically incorrect. The plural subject carbon emissions does not agree with the singular verb has.D. have amounted to 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent compared to emissions in 1990, while accounting for 27 percent carbon emissions
This answer choice is illogical. The phrase 27 percent carbon emissions has no intelligible meaning in this sentence.E. have amounted to 1,866.7 Teragram CO2 equivalent in 2003, an increase of 24 percent more compared to emissions in 1990, while accounting for 27 percent of the total sum of carbon emissions
No, that's not it.
This answer choice is stylistically flawed. Using both increase and more is redundant.