The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 77-year-old man comes to your office for a routine visit. He is doing well, and his only complaint is the recent appearance of several brown greasy appearing lesions on his forehead (figure A) that he can't seem to peel off. What is the most likely diagnosis?   (A) Melanoma   (B) Seborrheic keratosis   (C) Acanthosis nigricans   (D) Erythema nodosum
['(B) Seborrheic keratosis <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Melanoma \n (B) Seborrheic keratosis \n (C) Acanthosis nigricans \n (D) Erythema nodosum <> possible answers', "  A 77-year-old man comes to your office for a routine visit. He is doing well, and his only complaint is the recent appearance of several brown greasy appearing lesions on his forehead (figure A) that he can't seem to peel off. What is the most likely diagnosis? <> context@"]