This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Parathyroid Gland, Subject name: Medicine
Chromosome involved in pathogenesis of MEN 4? 
Select and explain. 
A. 10, B. 11, C. 12, D. 13
C: 12
Answer: C: 12 
Explanation: Chromosome aberrations in MEN MEN 1 11q13 MEN 2 10 ( RET proto-oncogene) MEN 3 10 ( RET Proto-oncogene) MEN 4 12p13