Answer:
The flaw that needs to be corrected in the passage is:
A. The counter does not give specific evidence to oppose the counterargument.
Step-by-step explanation:
The counterargument is that student athletes do not need to take physical-education classes because they already practice a lot. The counter must address that, giving specific evidence to oppose it. Take a look at the counter:
"on the other hand, they should have to take physical education classes."
Why? We are left unanswered. There is no evidence whatsoever, no explanation as to why they should attend those classes. That is the flaw that needs to be corrected. The writer needs to provide evidence for this counter in order to oppose the counterargument.