The answer would be (A) again because in a essay you are stating your points and you have a structure on how to do it and it must be consistent throughout the whole essay or its going to be choppy and you wont get a good grade. hopefully that made sense. The other answers wouldn't make sense. So go with (A)
(A) would be best: An extended narrative poem about the deeds of heroes.
Answer:
where's the options? how am I gonna help you?