In the Greek myth, "Agamemnon offers Iphigenia in sacrifice in Aulis for favorable winds.", what is the significance of the sacrifice?
(A) It is a test of Agamemnon's devotion to the gods.
(B) It is a necessary condition for the Greek fleet to sail to Troy.
(C) It is a punishment for Agamemnon's arrogance.
(D) All of the above
