According to the author, some politicians attribute the society's deteriorated moral values to ______.

A．Home, school and church are responsible for education.
B．Administrative and political measures are not the only way to solve social problems.
C．Caution should be taken in making educational policies.
D．Young children need moral instruction in school.

A．the past ways for ruling a society
B．the society's established virtues
C．the traditional doctrines and justice
D．the out-of-date moral conducts