Although Battered Woman Syndrome Is Not Recognized in the DSM-5

Although battered woman syndrome is not recognized in the DSM-5, the Supreme Court of Canada has acknowledged that it may in some cases be used as a valid form of the self-defence defence.Why is this so?

A) because a woman who has been severely battered may not possess reasonable control over her behaviour
B) because an accused may reasonably believe that her life is in danger even though it may not be imminent or immediate
C) because a person has the right to protect himself or herself
D) because the battering may have resulted in brain damage, rendering the woman incapable of knowing right from wrong