This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
Normal transferrin is saturated with iron 
Select and explain. 
A. 20%, B. 35%, C. 50%, D. 70%
B: 35%
Answer: B: 35% 
Explanation: In normal individuals transferrin is about 1/3 rd saturated with iron , which is roughly near 35%. Ref :Robbins Pathologic basis of disease, pg :649