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

rita and will be co-captains of our field hockey team.

a.
me; subject

b.
i; subject

c.
me; predicate nominative

d.
i; predicate nominative

The pronoun that best completes the sentence is "I" and it is used as a subject. The pronouns that are used as a subject includes I, you, he, she, it, they and we. This sentence contains a compound subject which is "Rita and I". The pronoun "me" is an objective pronoun which functions only as the receiver of the action. 

But from the school year younger than me and i will t