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
What is the normal pH of human blood 
Select and explain. 
A. 7, B. 7.2, C. 7.35 to 7.4, D. 7.6
C: 7.35 to 7.4
Answer: C: 7.35 to 7.4 
Explanation: None