Research on Severely Deprived Children Who Are Adopted Before 6

Research on severely deprived children who are adopted before 6 months of age tends to show what?

A) The children exhibit a high accident and death rate.
B) The children seldom catch up socially or academically.
C) The children usually catch up if the home environment is supportive, but it often takes more than a year.
D) The children usually catch up within a year if the home environment is supportive.