Answer:
I need more info I can't answer it.
Explanation:
There are 2 options:
1) get the normal amount of sleep (7-9 hours) with some naps during the day.
2) Take a few more hours of sleep along with your 7-9 hours.
The answer here is D.
It uses a similie to make a comparison.
Umm.. Any site ending in .Gov or .Edu
Encyclopedia
Books written in depth on the subject
Any written or spoken words from creditable people who study\mastered the subject
Hope this helps.