Cool-headed and rational, Jo Eun-cha is a talented and driven anchorman who commands as well as demands respect. After ________ to get elected as a news director, he aims to ________ to his job as the top news anchor to increase his ________ of being elected the next year.

From the first blank we can infer that while Jo Eun-cha was running for the position for news director, but that he's now an anchor, it must be that he had not succeeded in the elections for the position of news director. Option B is the likely choice in blank 1. Both 'quit to'  and 'give up to' (his job), (the word 'to' follows the second blank), are incorrect with 'to' and we can eliminate options A and D. In the third blank, all except 'certainty' are a good choice of word in blank 4. Using elimination we can conclude that option B has the set of words which are all suited in their respective blanks. And should be the correct answer.