Which of the Following Statements Is TRUE About Cholesterol Levels

Which of the following statements is TRUE about cholesterol levels in humans?

A) High-density cholesterol leads to the hardening of the arteries when its level increases and sticks to the lining of the blood vessels.
B) Low-density cholesterol is referred to as good cholesterol as the risk of cardiovascular disease reduces.
C) High-density cholesterol is referred to as bad cholesterol as the risk of cardiovascular disease increases when low-density cholesterol is high.
D) The level of cholesterol in the blood increases during the adult years and in midlife begins to accumulate on the artery walls.