Why didn't Menelaus avenge Agamemnon? He wanted Orestes to become a man. His depleted army could not match up to Aegisthus's. His ships were blown off-course to Egypt. He did not dare leave Helen alone in the house again.

second person

explanation:

note the heavy uses of "you", "your", as well as "he".

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basic principle: a pronoun usually refers to something earlier in the text (its antecedent) and must agree in number — singular/plural — with the thing to which it refers. the indefinite pronouns anyone, anybody, everyone, everybody, someone, somebody, no one, and nobody are always singular.