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: Pathology
Which of the following is not true about medullary carcinoma of thyroid - 
Select and explain. 
A. Origin is from `C' cells of thyroid, B. Component of MEN-1, C. Multicentric in origin, D. Amyloid deposition
B: Component of MEN-1
Answer: B: Component of MEN-1 
Explanation: Medullary thyroid carcinoma is associated with MEN 2 (2A & 2B), and not with MEN-1.
When medullary thyroid carcinoma occurs as a part of MEN syndrome, it may be multicentric.