Recent Research Suggests That Since the 1970s,the Prevalence of Eating

Recent research suggests that since the 1970s,the prevalence of eating disorders:

A) has increased for all types of eating disorders.
B) has increased,but only for 20-30 year olds.
C) has decreased among women but increased among men.
D) has decreased among men but increased among women.
E) has increased and stabilized,most clearly for anorexia nervosa.