The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Routine examination of a 17 years old asymptomatic boy reveals sho PR interval, and delta wave on ECG. The least effective measure for the boy would be:   (A) Hotter monitoring   (B) Treadmill stress test   (C) Beta blocker   (D) Reassurance
['(B) Treadmill stress test <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Hotter monitoring \n (B) Treadmill stress test \n (C) Beta blocker \n (D) Reassurance <> possible answers', '  Routine examination of a 17 years old asymptomatic boy reveals sho PR interval, and delta wave on ECG. The least effective measure for the boy would be: <> context@']