Epidemiological Studies Have Shown That Males and Females Differ in Terms

Epidemiological studies have shown that males and females differ in terms of emotion-based disorders. Specifically:

A) Externalizing problems are more commonly observed in males than females, a gender difference that persists from early childhood through adolescence.
B) Internalizing problems are more commonly observed in females than males, a gender difference that persists from early childhood through adolescence.
C) In general, behavioral disturbances of boys are observed at an early age, whereas some of the emotional disturbances of females become noticeable only at later ages.
D) All of the above.