A system that moves your body is the muscular system, this system is made up of cells that helps you move your body and move materials throughout the body.
Answer:
The correct option is: b. ego
Explanation:
In the Structural Model of the Human Psyche, Sigmund Freud defined the three distinct interacting components of the complex human personality: id, ego, and super-ego.
According to this principle, the ego is the realistic and organized part of the human personality, which mediates between desires of the super-ego and id. <u>The ego acts according to the reality principle</u>.
-people became too materialistic
-the economic system didnt work well
-the governmental system adjusted to change too slowl
