The correct option is C 9 PM - 5 AM
Sleep plays an important role in your physical health. Early to bed and early to rise, makes a man healthy wealthy and wise.
Enough sleep and waking up early helps the body and mind get enough relaxation and rest. Also, we should sleep 8 hours a day to refresh ourselves for the next day.
So, Rick should sleep early at 9 PM and wake up early at 5 AM thereby completing his 8 hours of sleep as well.