input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following causes vasodilation?   (A) Thromboxane A2   (B) Prostaglandin E2   (C) Histamine   (D) Serotonin
output: ['(C) Histamine <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Thromboxane A2  (B) Prostaglandin E2  (C) Histamine  (D) Serotonin <> possible answers', '  Which of the following causes vasodilation? <> context']