In these questions, two sentences (I) and (II) are given. Each sentence has a blank in it. Against each five options are suggested. Out of these, only one fits at both the places in the context of each sentence. Mark that option as your answer.

I. Usually fund-raising events and charity auctions raise a large amount of money as people from all sections of the society get an opportunity to .......... for a cause.
II. Today, a person needs to .......... very hard for surviving in the corporate race.

A. work

B. contribute

C. effort

D. donate

Please do not use chat terms. Example: avoid using "grt" instead of "great".