John Buff Picks a Fight with James Smalls

John Buff picks a fight with James Smalls. John begins to punch James in the face over and over again for no reason at all. James tries to fight back and in doing so he knocks John down on the ground where John hits his head on a rock and dies. James is arrested and charged with the murder of John. ​

A) At trial James argues that John attacked him and that he was just defending himself. This is referred to as: ​
B) self-preservation.
C) protection against others.
D) self-defense.
E) rock solid defense.