Why Does Dershowitz Discuss Our Acceptance of the Practice of Shooting

Why does Dershowitz discuss our acceptance of the practice of shooting fleeing felons?

A) To argue that deadly force can only ever be justifiable used against the guilty.
B) To argue that this practice follows from the same general principles that are used to argue against torture.
C) To argue that we already accept more harmful practices than nonlethal torture to save lives.
D) To argue that the infliction of pain is only justified when there is certainty of the subject's guilt.