I need more details to answer this question
Answer:
The correct pronoun is whomever.
Explanation:
The pronoun whomever is the <em>objective case</em> of whoever. This means whomever can only be used either with a preposition (e.g. to, for, or about) or with a verb (an action word) that requires a direct object. Use whoever or whomever to agree with the verb in that dependent clause, regardless of the rest of the sentence.
Answer:a. For screaming
B.at 129 decibels , by a pneumatic drill
C. By nine gigantic bulls
Explanation:
Example of prepositions: to, at, for, by, in front of, between, under,over, behind, on
