This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Physiology
[{'content': 'Which is the site of generation of respiratory rhythm? \nSelect and explain. \nA. Botzinger complex, B. Pre-Botzinger complex, C. Dorsal respiratory group of neurons in medulla, D. Ventral respiratory group of neurons in medulla', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B Pre-botzinger complexRef: Ganongy 25th ed. pg. 656Prebotzinger complex- located between nucleus ambiguous and lateral reticular nucleus on either side of medulla is the site of generation of respiratory rhythm.', 'role': 'assistant'}]