Answer:
B. Not mine,by the way, furthermore, and however
Explanation:
A parenthetical expression is some words added to a sentence to provide additional information, but without altering the main idea of the sentence.
!Not mine,by the way, furthermore, and however" are a few of the words that could be used in those parenthetical expressions to set them apart from the main sentence.
He took Brian's pencil, not mine.
I studied at Loyola University, by the way, so I know Professor Smith.