The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Bezold-Jarisch reflex is mediated by:   (A) Serotonin   (B) Angiotensin   (C) Prostaglandin   (D) Histamine
['(A) Serotonin <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Serotonin \n (B) Angiotensin \n (C) Prostaglandin \n (D) Histamine <> possible answers', '  Bezold-Jarisch reflex is mediated by: <> context@']