The physical stimulus for the perception of touch is:

Accordingly to Jean Piaget's cognitive-developmental theory, children

A) actively construct knowledge as they manipulate and explore their world. B) acquire new social values as sexual instincts die down. C) gradually become more selective in what they imitate. D) develop within a complex system of relationships affected by multiple levels of the surrounding environment.

Which of the following refers to the process of initiating, directing, sustaining, and terminating the activities of an organism?

a. perception b. motivation c. emotion d. learning