"Replace accept with except" is the correct answer. This is correct because to accept is to receive, while except implies an exclusion.
"Replace wear with ware." This is incorrect because wear means “to dress in”, while ware denotes products or goods.
"Replace allowed with aloud." This is incorrect because allowed indicates permission, while aloud indicates volume.
"Replace aren’t with ain’t." This is incorrect because aren’t is a contraction of are and not, while ain’t is slang.