Increased Impulsivity and Hyperactivity, as Well as Difficulty with Organizing

Increased impulsivity and hyperactivity, as well as difficulty with organizing and integrating information, has been reported in children born to women who heavily used marijuana during their pregnancy. This is likely because

A) cannabis crosses through the placenta and alters the neurology in the prefrontal cortex, the part of the brain that handles higher cognitive functioning.
B) the newborns undergo a difficult period of withdrawal from the drug following their birth.
C) the lungs of the newborn are underdeveloped and the brain does not receive an adequate supply of oxygen.
D) cannabis restricts the blood flow to the developing fetal brain during the second trimester of the pregnancy.