Which of These Statements About Lipids Is True of a "Healthy

Which of these statements about lipids is true of a "healthy" diet?

A) A gram of triglyceride provides half as many calories as a gram of carbohydrate or protein.
B) Cholesterol provides most of the energy for skeletal muscle cells.
C) Phospholipids are important components of the plasma membrane and myelin sheaths.
D) Steroid hormones are formed from modified triglyceride molecules.
E) Saturated fats should contribute to no more than 50 percent of the total fat intake.