The answer would probably be d
I believe it is persuasive. You're trying to get people to help preserve the mountains, da? That essay is trying to persuade them
I'd say the answer is 'the visible is more dangerous than the invisible', because Duncan never suspected that his faithful Macbeth would be the one to kill him.
Your answer is going to be the second one which is “Fables often include talking animals.Legends never do”.