input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** When a person lies down :   (A) There is immediate increase in venous return   (B) Heart rate becomes stable at slightly more than normal   (C) Cerebral blood flow increases & becomes stable at more than normal   (D) Blood flow to the Apex of lung decreases
output: ['(A) There is immediate increase in venous return <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) There is immediate increase in venous return  (B) Heart rate becomes stable at slightly more than normal  (C) Cerebral blood flow increases & becomes stable at more than normal  (D) Blood flow to the Apex of lung decreases <> possible answers', '  When a person lies down : <> context']