Answer:
Step-by-step explanation:
Think about it for a moment. How many different plots can you think of for a novel?
My guess is not many.
Romance
Mystery
Horror
Religious
Historical Novels (Romance usually)
Can you think of more?
Occasionally you do get something original -- something that resembles no other novel (for example). I'm think of something like James Joyce's Ulysses. There are great novel's from the past, but they fit into some category or another. Ulysses does not I don't think. The other genres (like poetry - especially poetry) don't always fit into a category.