The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Respiratory rhythm generation center is located at:   (A) Dorsal respiratory group   (B) Pre-Botzinger complex   (C) Ventral respiratory neurons   (D) Pneumotaxic center
['(B) Pre-Botzinger complex <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Dorsal respiratory group \n (B) Pre-Botzinger complex \n (C) Ventral respiratory neurons \n (D) Pneumotaxic center <> possible answers', '  Respiratory rhythm generation center is located at: <> context@']