Getting adequate sleep is an important part of physical health.

True, getting adequate sleep is an important part of physical health.

Not enough sleep can affect many things such as vision, inability to concentrate, lack of energy, not wanting to eat, and other things. Lack of sleep can cause obesity, even if you are working out and eating healthy. With enough sleep, it will increase your appetite, which will make sure you're getting enough nutrients and vitamins. 

Ithink the correct answer is c

1.controls blood flow2.controls oxygen flow3.carries oxygen rich blood to veins