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: Medicine
True about primary pulmonary hypoventilation is 
Select and explain. 
A. Does not respond to chemical stimuli, B. Hypocapnoea and normal PaO2, C. Common in children, D. Respiratory alkalosis is diagnostic
A: Does not respond to chemical stimuli
Answer: A: Does not respond to chemical stimuli 
Explanation: None