In which sentence is the pronoun “whom” correctly used?

a. do you know whom is the whale’s most threatening predator?

b. is he the man whose they selected to be captain of the ship?

c. it was she whole took the pictures of the whales.

d. we will talk to qualified applicants whom apply to be captain.

C. It was she whole took the pictures of the whales

The correct answer is B

Explanation:

In letter A, WHOM should be who, as it is the subject of the clause

In letter B, WHOSE  should be WHOM, as it is the object of the clause "they selected "

In letter C, WHOLE should be who, as it is the subject of the clause.

In letter D, WHOM should be who, as it is the subject of the clause too

the most ethic and honorable thing for the newspaper to do are:

be completely transparent in reporting about the company’s attempt to trade favors.

contact other construction companies to tell them about the situation.

these two options are the most ethic because both promote the market fair course, by telling the other competitors about the company attempt to get ahead in the market by trading favors, the market is guaranteed equality and justice in the trading of goods and services.