The word "deterrent"(Line 1, Para. 3) most probably means" ______ ".

A．Critical.
B．Cynical.
C．Ironic.
D．Humorous.

A．Society is to blame for the rising crime.
B．All the criminals arc to be sympathized.
C．Crime defenders have done a lot for criminals.
D．Severe punishment should be used to prevent crime.