Answer:
C) NREM-3 sleep
Explanation:
C) NREM-3 sleep refers to stage 3 of NREM sleep. This stage is considered as a deep sleep stage and brain waves are termed as delta waves during this stage. The slow speed and large amplitude are characteristics of brain.
The characteristics of NERM -3 sleep are
- muscles are relax
- blood pressure drop
- stage of deepest sleep