Blockage of the common hepatic duct would interfere with digestion of

a) proteins.
b) fats.
c) disaccharides.
d) complex carbohydrates.
e) vitamins

B) fats

Explanation:

Common hepatic duct is s the part of the biliary tract which means that is involved in the secretion of bile.

Bile salts secreted from the bill have an important role in emulsification of lipids (fats). They have the ability to aggregate around lipids thanks to their amphipatic nature. Amphipatic nature means that they have hydrophobic side which binds directly to lipids and hydrophilic side which are faced outwards. Lipids enveloped with bile salts are called micelles.

Formation of micelles increases the surface area of fat, which is appropriate for the the action of the enzyme pancreatic lipase (perform digestion of triglycerides).