Refer to the Figure Below

Refer to the figure below. Suppose you had to synthesize a phospholipid using the compound shown above as starting material.What step would you take?

A) Add a phosphate group onto one of the carbons of the glycerol backbone.
B) Add a phosphate group onto the end of one of the hydrocarbon tails.
C) Add a phosphate group onto the carbonyl carbon connecting one of the fatty acids to the glycerol backbone.
D) Replace one of the fatty acids bonded to the glycerol backbone with a phosphate group.
E) Replace one of the glycerol backbone carbons with a phosphate group.