From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences. The teacher asked.....

Answer Details

The word that best completes the sentence is "who". This is because "who" is used to refer to people, and in this sentence, the teacher is asking which person will have the courage to try and lift the heavy log. "Whom" is used as the object of a verb or preposition, "which" is used to refer to things, and "whomever" is used as the object of a verb or preposition in a dependent clause.