The Norman Conquest exerted Britain a profound influence of______.

A．Los Angeles, California
B．San Francisco, California
C．Chicago, Illinois
D．Los Vegas, Nevada

A．the schools should present political information according to carefully planned, schematic arrangements
B．the schools themselves constitute part of a general socio-political system that adolescents are learning to understand
C．if the schools were to introduce political subject matter in the primary grades, students would understand current political realities at an earlier age
D．the schools are ineffectual to the degree that they disregard adolescents' political naiveté