If a Complaint Alleging Serious Sexual Harassment Is Substantiated and Investigation

If a complaint alleging serious sexual harassment is substantiated and investigation shows that this behaviour had grown progressively worse over the course of a year, the most appropriate penalty for the offender would be:

A) termination of employment.
B) to undergo training in understanding the nature and effects of harassment.
C) to make them apologise to the victim.
D) to have them make a commitment not to repeat the behaviour.
E) an official warning.