Simon and Storandt's (1997)of Activity Levels in Childhood and Adolescence

Simon and Storandt's (1997) of activity levels in childhood and adolescence among competitors,non- competitors (i.e.,active but not competing in sport) ,and non- exercisers found which of the following?

A) Non- exercisers were more active during childhood and adolescence.
B) Non- exercisers were less active than both the competitors and non- competitors during childhood and adolescence.
C) Non- competitors were more active during childhood and adolescence.
D) Competitors were more active during childhood and adolescence.
E) There were no differences between the groups' activity levels during childhood and adolescence.