单项选择题

It can be inferred from the passage that the author would be most likely to agree with the statement about schools that

A.they should present political information according to carefully planned, schematic arrangements
B.they themselves constitute part of a general socio-political system that adolescents are learning to understand
C.they are ineffectual to the degree that they disregard adolescents' political naiveté
D.because they are subsidiary to government, their contribution to the political understanding of adolescents must be limited