What is a comparison of two unlike things using "like" or "as"?

What structure does the poet employ in the first stanza of "the second coming"? a) he gives examples that point to a problem of lost innocence in modern society. b) he warns of an effect that results from avoiding traditional customs. c) he compares and contrasts innocence and violence. d) he argues that society promotes its problems.

This is a word with multiple meanings but spelled the same

Amain idea is supported, explained, or expanded on with