The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Deficiency of nicotinic acid results in:   (A) Beri-beri   (B) Pellagra   (C) Night blindness   (D) Pernicious anemia
['(B) Pellagra <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Beri-beri \n (B) Pellagra \n (C) Night blindness \n (D) Pernicious anemia <> possible answers', '  Deficiency of nicotinic acid results in: <> context@']