In a Study of Mothers Who Used Combinations of Alcohol

Multiple Choice

 In a study of mothers who used combinations of alcohol, marijuana, and cocaine during pregnancy, it was found that they produced children who

A) could not be distinguished from those produced by mothers who used alcohol only.
B) had less gray matter than other children for the first few weeks of life, but who were subsequently quite normal.
C) had less white matter than other children.
D) had less gray matter than other children at least until age 10 to 13 years.