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: Physiology
Which one of the following is NOT a transpoer or binding protein: March 2013 
Select and explain. 
A. Erythropoietin, B. Ceruloplasmin, C. Lactoferrin, D. Transferrin
A: Erythropoietin
Answer: A: Erythropoietin 
Explanation: Ans. A i.e. ErythropoietinErythropoietin causes formation and release of new RBCs into circulation