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
Administration of pure O2 to hypoxic patients is dangerous because: 
Select and explain. 
A. Apnea occurs due to hypostimulation of peripheral chemo receptor, B. Pulmonary edema, C. DPG, D. Convulsions
A: Apnea occurs due to hypostimulation of peripheral chemo receptor
Answer: A: Apnea occurs due to hypostimulation of peripheral chemo receptor 
Explanation: A i.e. Apnea occurs due to hypostimulation of peripheral chemo receptor