The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Sunlight is one of the etiological causes of:   (A) Squamous cell carcinoma   (B) Malignant melanoma   (C) Basal cell carcinoma   (D) Port-wine stain
['(C) Basal cell carcinoma <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Squamous cell carcinoma \n (B) Malignant melanoma \n (C) Basal cell carcinoma \n (D) Port-wine stain <> possible answers', '  Sunlight is one of the etiological causes of: <> context@']