sentences:  While awareness was being heightened about child maltreatment, the supply of babies available for adoption dwindled in the 1970s as single parenthood became more accessible, birth control and pregnancy termination more readily available.At the same time women in the West women began delaying childbirth longer and longer for education and career, creating increased infertility.This reversed the previous supply and demand, with up to 25 adopters vying for each child.