A Female Manager Who Requires a Male Employee to Go

A female manager who requires a male employee to go on a date with her in order for the employee to be considered for a promotion:

A) is not engaging in unacceptable behavior, as only male employees can be found guilty of sexual harassment.
B) is probably just joking, in an attempt to improve workplace relationships.
C) may be engaging in quid pro quo sexual harassment.
D) may do so only in a union environment.