King’s right is correct because all the others refer to multiple people like an audience, women’s, and who’s (which can be referred to as anyone). The king is the only single person.
The answers of the given sentences above are the following:
1. The pronoun "he" in this sentence is used as a SUBJECT.
2. The pronoun "she" in this sentence is used as a PREDICATE NOMINATIVE.
3. The pronoun "he" in this sentence is used as a PREDICATE NOMINATIVE.
