Which of the Following Explains Why the Bile Acids Are

Which of the following explains why the bile acids are much better suited than cholesterol for use as emulsification agents for fats?

A) cholesterol is oxidized to form the more polar molecule 7-hydroxycholesterol in route to formation of the bile acids
B) while cholesterol contains a hydroxyl group as its sole hydrophilic functionality, cholic acid contains 3 hydroxyl groups and a carboxylic acid
C) cholate is conjugated with glycine to make glycocholate
D) cholate is conjugated with taurine to make taurocholate
E) all of the above