This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
Pancreatitis, pituitary tumor and phaeochromocytoma may be associated with - 
Select and explain. 
A. Medullary carinoma of thyroid, B. Papillary carinoma of thyroid, C. Anaplasticcarinoma of thyroid, D. Follicular carinoma of thyroid
A: Medullary carinoma of thyroid
Answer: A: Medullary carinoma of thyroid 
Explanation: medullary carcinoma of thyroid has 3 familial forms MEN 2A,MEN 2B, and familial MTC without other features of MEN (Harrison 17 pg 2246)