Thanks for the question! First, let’s break down the stimulus. Terry is saying that if you want to get a decent job, you should go to college. In other words
decent job —> college
Now Mark responds by saying no, actually, there’s other reasons to go to college than getting a good job. In other words, Mark is clearly misinterpreting what Terry has said. Terry is saying that one of the reasons to go to college is if one wants a decent job. But Terry thinks that Mark is saying that the only reason to want to go to college is to want to get a good job (since he prefaces by saying “that is not true”). Terry represents Mark’s argument as
college —> decent job
which Terry disagrees with. This is what (C) tells us. Terry thinks that Mark said that getting a decent job is the only reason for going to college, which is why Terry says that there are actually other reasons to go to college.
Hope this helps! Feel free to ask any other questions that you might have.