Answer:
C (or D - read explanation)
Explanation:
The boss can refer to c when they do not have to specify the gender. The term person can just imply that they're just a human.
A. cannot work because guy refers to man, or male.
B. cannot work because woman refers to a female.
D. cannot work because this athlete can be used in better settings. It all depends on context, so I may be wrong.