Greta's Child Has Facial Deformities, a Smaller Than Normal Head

Multiple Choice

Greta's child has facial deformities, a smaller than normal head, heart defects, mental retardation, learning difficulties, and delayed growth. If these defects can be traced to a teratogen used by Greta when she was pregnant, which was she most likely abusing?

A) nicotine
B) cocaine
C) marijuana
D) alcohol