Answer:
(Sorry if this answer is not correct, if it is or is not, please tell me in the comments!)
b.) a lyrical poem
Step-by-step explanation:
A novel is too long to describe a landscape because it is usually a story containing characters. A persuasive essay is an essay that tries to get the reader to believe something, but here, we are trying to describe it. A compare/contrast essay is mostly used for two different subjects and comparing them, but a landscape is only one.