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
Commonest tumour at inner canthus of eye - 
Select and explain. 
A. Rodent ulcer, B. Dermoid cyst, C. Malignant melanoma, D. Buruli ulcer
A: Rodent ulcer
Answer: A: Rodent ulcer 
Explanation: Ans. is 'a' i.e., Rodent ulcer