【单选题】What makes teenagers moody and impulsive? The answer used to be raging hormones plus a dearth of(短缺) life experiences. But three years ago this simple equation was blown apart by evidence from brain s...
A.
their innocence and lack of life experience
B.
their raging hormones and lack of life experience
C.
their radical attitudes towards life
D.
the generation gap between teenagers and their parents