John Has Made Unwanted Sexual Advances to a Female Employee

John has made unwanted sexual advances to a female employee that he manages. The female employee has rejected the advances. John then gives a very negative review of the female's work even though she has worked well, met her objectives, and received positive reviews in the past. This is likely a case of what?

A) Hostile work environment
B) Jealousy
C) Constructive discharge
D) Quid pro quo