17. Which of the following descriptions about acylglycerol and sphingolipid synthesis is CORRECT?
(A) In adipose tissue, glycerol 3-phosphate is synthesized by the phosphorylation of glycerol.
(B) Glycerol 3-phosphate is phosphorylated by glycerol kinase, and there is no alternative synthesis pathway from glycolysis.
(C) Glycerol 3-phosphate acyltransferase is the rate limiting step of triacylglycerol synthesis.
(D) Phosphatidylcholine synthesis involve ADP-activated choline.
(E) All sphingolipids are formed from ceremide.