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

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

A．his early experiences of upbringing and education
B．his upbringing which refers to the treatment and training at home
C．his education which he receives from teachers in school
D．the society in which he was born