Answer:
A
Step-by-step explanation:
I wouldn't know if I wasn't provided with choices. This is a very interesting question.
You are talking about residency for psychiatrists. Therefore, they would certainly be exposed to psychiatric disorders. B is not the answer.
C: They would certainly take in General Medicine. They would have to know how the human body responds to things including disease. C is not the answer.
D: Many stabilizing chemicals are used in the treatment of mental illness. D is of all the answers, the one you should never in a million choose it.
The answer is A. Athletes may have injuries but few result in mental illness (I can only think of 1).