This would exclude Digestion, being a factor in efficiency. All of the others are correct, except for answer D.
Answer:
Pixel car racer
Explanation:
you race cars, buy upgrades, buy cars and it's so fun
Answer: May not effect... what? What's the question?
A negative person does not prepare for a test at all, but a positive person stays organized, takes notes, makes note cards, and goes to bed early.
Physical fitness is the answer I believe
