The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following vitamin increases the absorption of iron?   (A) Vitamin A   (B) Vitamin C   (C) Thiamin   (D) Riboflavin
['(B) Vitamin C <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Vitamin A \n (B) Vitamin C \n (C) Thiamin \n (D) Riboflavin <> possible answers', '  Which of the following vitamin increases the absorption of iron? <> context@']