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: Medicine
True about hemochromatosis - 
Select and explain. 
A. Is genetically heterogenous, B. Cannot be treated by phlebotomy, C. Completely penetrant, D. More common in females
A: Is genetically heterogenous
Answer: A: Is genetically heterogenous 
Explanation: None