Which pronoun best completes the sentence?
how is the pronoun used?

and susan are working on a puzzle together.

a.
her; subject

b.
her; predicate nominative

c.
she; subject

d.
she; predicate nominative

The correct answer that would best complete the given sentence above would be option C. The pronoun that best completes the sentence is the pronoun "She", and this is used as a subject. So the sentence would be this: She and Susan are working on a puzzle together. Hope this answers your question.