Concerning the development of the brain during childhood and adolescence, which of the following statements is true?

a) The brain's development is more or less complete by the onset of puberty.
b) Brain development virtually ceases following puberty.
c) Brain development is faster during adolescence than during childhood.
d) Different parts of the brain mature at different rates in adolescence.

ANS: D, The different systems in the brain mature at different rates during adolescence, with the part of the brain encouraging reward-seeking behavior developing before the systems that regulate or control impulsive behavior.