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: Ophthalmology
Most common malignant eyelid tumor 
Select and explain. 
A. Squamous cell CA, B. Basal cell CA, C. Sebaceous CA, D. Malignant melanoma
B: Basal cell CA
Answer: B: Basal cell CA 
Explanation: B i.e. Basal cell CA