RBI Grade B Officers 2017 jun Paper

In this question a sentence is given with three words/ group of words in bold type. One or more of them may have a certain error. Below the sentence is given three combinations of words/group of words i.e. (A), (B) and (C). You have to find out the correct word/group of words from among (A), (B) and (C) given below each sentence to replace the incorrect words/group of words and make the sentence grammatically correct and meaningful. One, two, all three or none of them may be correct. Decide upon which is/are correct, if any, and select the option which decides you answer. If the sentence is correct as it is, select ‘No correction required’ as your answer. Though the either option for Britain is to revert to trading with the EU as America, China and India as, under normal World Trade Organisation rules, next economics say this would make economic damage from Brexit worse.
(A) only way-would likely- exacerbate
(B) explore-is likely to-better
(C) alternative-could-worsen