Concept:Subjects joined by neither ... nor take pronouns in the subjective case.Explanation:When a pronoun is part of a compound subject, use the subjective case: I, he, she, we, they.Do not use the objective case: me, him, her, us, them.Hence "Neither he nor I" is grammatically correct.The other options wrongly use objective pronouns such as me and him.Answer:A. Neither he nor I