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
The normal reticulocyte count is: 
Select and explain. 
A. 0.2-2%, B. 4-6%, C. 6-10%, D. 12-14%
A: 0.2-2%
Answer: A: 0.2-2% 
Explanation: The remaining basophilic material in the reticulocyte normally disappears within 1 to 2 days, and the cell is then a mature erythrocyte. Because of the short life of the reticulocytes, their concentration  among all the red cells of the blood is normally slightly less than 1 percent. So closest answer here is option A.