Answer:
It depends on the author.
Step-by-step explanation:
Since the author is not mentioned here, I can not answer based on ABCD. However, we can use some process of elimination. It is probably not B, because no author would admit they like trafficking drugs. It probably was not C because that gives no sense of time to when the author stopped selling drugs. It is likely not A because you do not have to attend college to be an author and that would imply that the author wasn't going to school for grades, which is unlikely. Your best option is then D because D shares a compelling story and makes the most logical sense.