This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Which protein is made by the liver and carries iron in the blood? 
Select and explain. 
A. Hemosiderin, B. Haptoglobin, C. Transferrin, D. Ceruloplasmin
C: Transferrin
Answer: C: Transferrin 
Explanation: The liver makes transferrin to carry iron in the blood. Hemosiderin is an intracellular complex of ferric hydroxide, polysaccharides, and proteins. Haptoglobin binds free hemoglobin in the blood. Ceruloplasmin is a circula ng plasma protein involved in the transpo of copper.