What percentage of cholesterol is endogenous (liver) according to the material?

• A. 85%
• B. 50%
• C. 15%
• D. 0%

Answer: (A)

The main idea here is how cholesterol sources are divided: endogenous synthesis versus dietary intake. The liver is the powerhouse for making cholesterol, producing the majority of what the body needs. According to the material, about 85% of cholesterol comes from endogenous synthesis in the liver, with the remaining roughly 15% coming from dietary intake. That’s why the best choice is the 85% figure. The other options imply a much smaller or different balance between internal production and diet, which doesn’t fit the liver-dominant picture of cholesterol supply.