Answer :
One difference between tragedy and comedy is that tragedy "A. usually features an extraordinary hero" although of course comedy can have heroes involved as well.
The tragedy emphasizes human shortcomings, depicts hero who is isolated, is always late to realize the truth and they die as a result of great downfall. Self-deception and pride are the main themes in tragedies with human fate playing a major role. In comedies humor is the central theme. It depicts human weaknesses. The protagonist is an ordinary person and he is not realistic or tolerant.
After pointing out the characteristics of the tragedies and comedies, working with the options we can see that B is peculiar for the comedies. C and D can be used in both of the plays. Therefore, the answer is A.
