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
What’s the prognosis of thyroid cancer is 
Select and explain. 
A. Papillary, B. Medullary, C. Anaplastic, D. Folicular
C: Anaplastic
Answer: C: Anaplastic 
Explanation: Best prognosis — papillary
Worst prognosis - anaplastic