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.
III. hasty generalization
A syllogistic fallacy is more of a generalization than it is a sequence or analogy. This error of reasoning occurs by first mentioning something broad/general then proceeds to make a conclusion about something that is very specific by means of generalizing. For example, this would be considered fallacy of syllogism:
All jets are air crafts. All propeller airplanes are air crafts. Therefore, propeller airplanes are jets.
Thus, you can see how a generalization is made about propeller airplanes being jets because they are both air crafts.
The answer is false. unit tests don't have any specific requirements.