Question: Which of the following steps of cholesterol biosynthesis is what controls the speed and place of metabolic regulation: 
 Options:  <1> Geranyl pyrophosphate Farnesyl pyrophosphate. <2> Squalene  Lanosterol <3> Lanosterol  Cholesterol. <4> Acetyl CoA  Acetoacetyl CoA. <5> 3-Hydroxy-3-methylglutaryl CoA Mevalonic acid.
5