问题：
[单选题]Helen Mather's thesis is probably (choose one):
AIf you make demands on children, their time, and their company, what do you get?
BTheir parents and grandparents were coerced into silence, and, thereby became little sneaks and liars, while the young people of today are above-board.
CPretty frequently nowadays, we hear complaints of the selfishness of girls towards their mothers, and sons towards their fathers.
D[Children] are not one bit more selfish than their parents and grandparents were before them.
答案解析：