Bruh
the speaker says her diary is like a novel from the store.
what type of figurative language is this?
a) idiom.
b) metaphor.
c) onomatopoeia.
d) simile.

I believe the correct answer from the choices listed above is option D. The type of figurative language used would be simile.  It is a figure of speech that directly compares two things by using connecting words for instance like and as. Hope this answers the question.