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: Surgery
Hyperparathyroidism (in 80% cases), pancreatic islet cell tumors, and pituitary adenomas are seen in: 
Select and explain. 
A. Men 1 (Wermer), B. Men 2A (Sipple), C. Men 2B, D. All of the above
A: Men 1 (Wermer)
Answer: A: Men 1 (Wermer) 
Explanation: None