The correct option is C Neither have I
Option C is the correct answer. The determiner neither is followed by the verb in the present tense compatible with that in the given question, succeeded by the pronoun I. Options B and C constitute the wrong form of the verb, which is incoherent with the question. Option A is incoherent and incomplete in this context. The statement in option E does not negate the activity done as being done in the question, but affirm it. As a reply to the statement, the negation seems to be the most appropriate answer. Thus, option C is the most appropriate answer.