Which of the Following Are the Two Key Points of Piaget's

Multiple Choice

Which of the following are the two key points of Piaget's cognitive perspective?

A) People are controlled by their environment,and behavior develops in a specific order.
B) People are active in their development,and behavior is random at any developmental stage.
C) People are active in their development,and behavior develops in a specific order.
D) People are controlled by their environment,and behavior is random at any developmental stage.