47.有關HDL3的化學組成，下列何者正確？
(A)triglyceride 75%，cholesterol 7%，protein 5%
(B)triglyceride 50%，cholesterol 20%，protein 15%
(C)triglyceride 15%，cholesterol 40%，protein 25%
(D)triglyceride 3%，cholesterol 17%，protein 55%