Physiology In which of the following conditions oxygen delivery is least to muscles? A Person inhaling 100 percent oxygen at the top of mout everest B Marathon runner at sea level C Person with carbon monoxide poisoning D None of the above (this option none of the above was also there) 💡 Explanation In which of the following conditions oxygen delivery is least to muscles? ✓ Correct Answer: C. Person with carbon monoxide poisoning