The following are multiple choice questions (with answers) about medical knowledge.   **Question:** CPR should have a ratio of chest compression to mouth breathing of:   (A) 1:04   (B) 4:01   (C) 2:03   (D) 3:02
['(B) 4:01 <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 1:04 \n (B) 4:01 \n (C) 2:03 \n (D) 3:02 <> possible answers', '  CPR should have a ratio of chest compression to mouth breathing of: <> context@']