This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
All the statement about lactoferrin are true,except- 
Select and explain. 
A. It is present in secondary granules of neutrophil, B. It is present in exocrine secretions of body, C. It has great affinity for iron, D. It transports iron for erythropoiesis
D: It transports iron for erythropoiesis
Answer: D: It transports iron for erythropoiesis 
Explanation: Transport of iron for erythropoiesis is done by transferrin and not by Lactoferrin
Lactoferrin

It is an iron-binding protein and has a high affinity for iron
Lactoferrin is found in -

(a) Specific/secondary granules in neutrophils.
(b) Many exocrine secretions and exudates - milk, tears, mucus, saliva, bile etc.

It apparently exerts an antimicrobial activity by withholding iron from ingested bacteria and fungi.