Answer: It would be (B.).
Explanation:
An adverb phrase consists of words that are used to modify an adjective, a verb and an adverb. Among the given sentences above, the sentence that contains a clause that is used as an adverb is: I do not mind fishing, as long as I don't have to bait the hook. The correct answer is option D.
If im on the right track then a way to right it with dashes would be: Sacrificing her was a mistake-a mistake that could have been avoided. but i may not have understood the question??
