Read the sentence to find out whether there is any grammatical or idiomatic error in it. The error, if any, will be in one part of the sentence. The corresponding letter of that part is the answer. If the given sentence is correct as it is, then choose option ‘No error’ as the answer response. (Ignore errors of punctuation, if any).

An increase in (A)/ fuel prices will cause (B)/ a decrease in (C)/ gas purchases (D)/ no error (E).

Correct option is E

Correct Answer: (E) No error

Explanation of each part:

(A) An increase in → correct phrase
(B) fuel prices will cause → correct verb usage
(C) a decrease in → correct structure
(D) gas purchases → correct and meaningful expression

Conclusion:

The sentence is grammatically and contextually correct.