The author implies that attempt to treat human relations scientifically have thus far been relatively ______.

A．neither the state nor the individual has the right to take a life
B．the state has the right to take a life but the individual does not
C．the death penalty has nothing to do with individual conscience and belief
D．the deterrence figures have added up and the execution rate has fallen

A．the argument in favor of the death penalty
B．the argument against the death penalty
C．the argument about the abolition of the death penalty
D．the argument about the reintroduction of the death penalty