This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Spontaneous rhythmic respiration initiated in \nSelect and explain. \nA. Pre-Botzinger complex, B. Dorsal respiratory group, C. Pneumataxic centre, D. Apneusic centre', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Pre-Botzinger complex', 'role': 'assistant'}]