And the peripheral nervous system
The third option. Long period of uninterrupted low or moderate intensity physical activity.
Mostly no because you interact with your peers with the same interest as you
If by inside, you mean staying indoors, then this is false. The average hours of sleep that people should get is between 7-8 hours. That would be 7/24 * 100 = about 30%. People must at least stay inside to sleep.
I hope I was able to answer your question. Have a good day.