The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Sonic frequency range is:   (A) 1000-2000 Hz   (B) 1500-6000 Hz   (C) 20,000-30,000 Hz   (D) 10,000 Hz
['(B) 1500-6000 Hz <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) 1000-2000 Hz \n (B) 1500-6000 Hz \n (C) 20,000-30,000 Hz \n (D) 10,000 Hz <> possible answers', '  Sonic frequency range is: <> context@']