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
Sunlight is one of the etiological causes of: 
Select and explain. 
A. Squamous cell carcinoma, B. Malignant melanoma, C. Basal cell carcinoma, D. Port-wine stain
C: Basal cell carcinoma
Answer: C: Basal cell carcinoma 
Explanation: None