A. To do whatever he wants them to do.
A sentence fragment is a sentence that is incomplete, one that is separated from the main claus. In this case "To" is a preposition, which means that there should be more to the sentence. You can tell because you can't fully understand the idea behind the sentence. Therefore A, is the fragment.
Huck goes along with Tom's crazy plans because he wants to be noticed and missed. He also doesn't want to let his friend down or disappoint him.
Answer:
9 c 10 A 11 C 12 A 13C 14 A 15 C
