This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
The condition known as REM sleep is - 
Select and explain. 
A. That point at which the, B. Indivudual becomes aware and ale., C. Referred to as paradoxical sleep., D. Characterized by total lack of all muscular activity
C: Referred to as paradoxical sleep.
Answer: C: Referred to as paradoxical sleep. 
Explanation: C i.e. Referred to as paradoxical sleep