When Studies of Persons Treated and Untreated for Existing Bulimia

When studies of persons treated and untreated for existing bulimia are combined,it appears that:

A) many patients recover with no treatment
B) more patients recover after receiving treatment that exhibit spontaneous recovery without treatment
C) treatment does not appear to be necessary or even useful for some people
D) for some subgroups,recovery rates are quite low for both treated and untreated groups
E) most women do not cross diagnostic categories of eating disorder