D. oxygen,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
Eating too much saturated fats in your diet can raise "bad" LDL cholesterol in your blood, which can increase the risk of heart disease and stroke. "Good" HDL cholesterol has a positive effect by taking cholesterol from parts of the body where there's too much of it to the liver, where it's disposed of.
Answer:
b cirulatory system that's the answer
"Healthy Eating"
Author: Unknown
www.helpguide.org/articles/healthy-eating/healthy-eating.htm
