The Large-Scale Study of the Effects of Child Care That

The large-scale study of the effects of child care that was funded by the National Institute of Child Health and Development demonstrated which finding about the effects of amount of child care on the social behaviour of children from working- and middle-class families?

A) The amount of child care was not associated with children's social behaviour.
B) The risk of children exhibiting problem behaviours increased with more hours in child care.
C) Long hours spent in day care caused aggression and social withdrawal.
D) Extensive time in child care was more detrimental to children from very low-income, high-risk families.