28. Which of the following play key role in regulating cholesterol metabolism by both uptake of cholesterol ester in liver and efflux of cholesterol in tissue? (A) ATP binding cassette transporter A1 (ABCA1). (B) ATP binding cassette transporter G1 (ABCG1). (C) Lipoprotein Lipase anchored by heparan sulfate proteoglycans. (D) Class B scavenger receptor B1 (SR-B1). (E) Lecithin cholesterol acyI transferase (LCAT).