What is the percentage of oxygen and carbon dioxide in inhaled and exhaled air?
Choose Your Option
A. Inhaled: O2 21%, CO2 0.04%; Exhaled: O2 16.4%, CO2 4.4%
B. Inhaled: O2 16.4%, CO2 4.4%; Exhaled: O2 21%, CO2 0.04%
C. Inhaled and exhaled are same
D. Inhaled has more CO2