All the Following Are True of the Formal Operational Period

Multiple Choice

All the following are true of the formal operational period EXCEPT:

A) the formal operational period differs from earlier periods in Piaget's theory in that not all children achieve it
B) the hallmark of the formal operational period is the ability to engage in hypothetico-deductive reasoning
C) children in formal operations can reason logically without reference to the immediate surroundings
D) thinking during formal operations has been likened to an engineering model of trying to figure out how to get things to work