The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Most common sign of airway obstruction   (A) Slow pounding pulse   (B) Strenuous breathing   (C) Increase pulse rate   (D) Decrease pulse rate
['(B) Strenuous breathing <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Slow pounding pulse \n (B) Strenuous breathing \n (C) Increase pulse rate \n (D) Decrease pulse rate <> possible answers', '  Most common sign of airway obstruction <> context@']