How Might Adolescents' Tendency to Engage in Such Risky Behaviors

How might adolescents' tendency to engage in such risky behaviors as street racing and experimental drug use reflect brain development phenomena?

A) The corpus callosum is still developing during adolescence,impeding communication between the brain's hemispheres.
B) The prefrontal cortex matures slowly,retarding adolescents' ability to weigh potential consequences.
C) The limbic system does not develop fully until early adulthood; this means that adolescents have a poor understanding of their own emotions.
D) The brainstem matures only gradually,impairing the regulation of basic behaviors.