How is the underlined pronoun in the sentence used? whom are you calling? a. direct object b. predicate nominative c. object of a preposition d. subject

The correct answer is A.) Direct Object.

My reason being is because a direct object is a group of words representing the person or thing upon which the action of a verb is preformed or toward which it is directed.

I hope that this is really helping you a lot.

B." to guard against " is correct answer