This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
[{'content': 'Most common site of basal cell carcinoma is \nSelect and explain. \nA. Face, B. Chest, C. Abdomen, D. Extremities', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Basal cell carcinoma is usually a slow-growing, locally-invasive, malignant tumour of pluripotential epithelial cells arising from basal epidermis and hair follicles; hence, it affects the pilosebaceous skinThe strongest predisposing factor to BCC is UVR.Ref: Bailey and Love, 27e, page: 605', 'role': 'assistant'}]