For More Than Eight Years,Marilyn's Husband Has Subjected Her to Physical

For more than eight years,Marilyn's husband has subjected her to physical and psychological abuse.As a result,she has been treated in the emergency room more than 10 times for a variety of injuries from bruises to broken bones.Each time she is abused,her husband begs for forgiveness.Finally,one night she takes his gun and shoots him as he is sleeping.She is charged with murder.Which of the following is a defense that has been used more often in cases like Marilyn's?

A) the battered woman syndrome
B) temporary insanity
C) guilty but mentally ill
D) self-defense