Which of the following statements is true regarding lipid metabolism?

Which of the following statements is true regarding lipid metabolism?
 
  a. The synthesis of one molecule of cholesterol requires 5 molecules of mevalonate
  b. The synthesis of fatty acids from acetyl CoA involves reduction by NADPH and FADH2
  c. Synthesis of fatty acids involves a coordinated effort of fatty acid synthase complex and the acyl carrier protein
  d. The conversion of lanosterol to cholesterol requires only 4 steps, two that remove methyl groups, an isomerization, and a reduction
  e. The synthesis of fatty acids involves a series of reactions catalyzed by several separate enzymes, thus requiring the substrates to diffuse from one enzyme to the next