Which describes how the underlined pronoun is used in the sentence? Does he know how to play guitar? A. predicate nominative B. subject C. direct object D. object of a preposition

The pronoun that is used in the given sentence above is "he". And this pronoun, as used in the sentence, functions as a subject. The correct answer is option B. It is used as a subject because it is what is being talked about in the sentence and is doing the action word "does know".