According to the Text,what Was One Problem with Many of the Foster

According to the text,what was one problem with many of the foster families where children were placed in the past?

A) the failure of parents to teach children good work habits
B) the demand for girls, which made it hard to find homes for boys
C) the desire of parents to have a baby who would be like their own
D) the lack of screening and supervision to ensure children were not abused