The word "cumulative" in line 3, paragraph 1 most probably means ______.

A．he were subjected to unusually strict discipline
B．his mother often gave in to his demands
C．his energies were freely given an outlet
D．he were brought up in a happy environment

A．the cultural pattern is the single factor that affects a child's upbringing at home
B．by no means does the technological development of a community contribute to the development of children' s character
C．there are definite rules for parents to abide by in bringing up their children
D．upbringing and education are mutually complementary