Research into the Development of Formal Operational Tasks Among Peasants

Research into the development of formal operational tasks among peasants in tribal and village societies found that

A) formal operational thought occurs more often in women than men.
B) they often reason at a much higher level than young people in industrialized nations.
C) people can be capable of formal operational thought even if they rarely display it in everyday life.
D) they are incapable of mastering formal operational tasks.