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
The histopathologic feature of medullary carcinoma of thyroid is 
Select and explain. 
A. Anaplasia, B. Mitotic figures, C. Psammoma bodies, D. Amyloid stroma
D: Amyloid stroma
Answer: D: Amyloid stroma 
Explanation: None