What happens during REM sleep?

a. The body is relaxed and free to move around.

b. The mind is cleared of all thoughts.

c. Your muscles are paralyzed so you don't act out your dreams.

d. Your mind prepares for dreams to occur in the next sleep stage.

C. Your muscles are paralyzed so you don't act out your dreams.

Explanation:

Rapid Eye Movement (REM) sleep is one of the most important stages of sleeping, in which the brain is highly activated and can even be noticeable since the eyes tend to move fast, as the name states.

This is the stage in which dreams occur so the muscles are paralyzed to protect the individual from carrying out physical actions.

The body is not relaxed and free to move around and the mind is not cleared of all thought since this is when memory integration occurs.