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
Spindle Cell Carinoma is a variant of 
Select and explain. 
A. Pleomorphic Adenoma, B. Adenoid cystic carcinoma, C. Basal cell carcinoma, D. Squamous cell carcinoma
D: Squamous cell carcinoma
Answer: D: Squamous cell carcinoma 
Explanation: None