Which type of pronoun is used in the subject or predicate noun of a sentence?

The correct choice is the nominative case pronoun, which is used as the subject of a sentence or in a predicate nominative. In English grammar, pronouns that fall into the nominative case include "I," "you," "he," "she," "it," "we," and "they." These are the pronouns that perform the action of the verb (as subjects) or rename the subject following a linking verb (as predicate nouns).

For example, in the sentence "She is a teacher," "She" is a nominative case pronoun functioning as the subject. In another example, "It is he," "he" is a nominative case pronoun serving as a predicate nominative that renames the subject "it."

Understanding pronouns in the nominative case is essential as they help form grammatically correct sentences, ensuring clarity and coherence in communication.