Answer:
C. run-on
Step-by-step explanation:
There is no comma, so that eliminates the first option, and it can't be a fragment because there are both a subject and a verb present. The sentence isn't correct because there shoud be some form of punctuation in-between water and he.
"He told me to get out of the water; he is crazy if he thinks I'm going to listen."
"He told me to get out of the water. He is crazy if he thinks I am going to listen."
"He told me to get out of the water -- he is crazy if he thinks I am going to listen."