It can't be A, because the Cyclops calls for his father, Poseidon, a god.
It can't be C because there's no other Cyclops in the story.
The Answer is B, Odysseus used trickery to free himself and his men because it was his duty to lead his men to safety, even though it seems that his men were the ones to cause the problem by entering the cave and intending to steal Polyphemus's food.