NEET 2021 Biology question

The partial pressures (in mm Hg) of oxygen (O) and carbon dioxide (CO) at alveoli (the site of diffusion) are :

• (A)pO = 104 and pCO = 40Correct
• (B)pO = 40 and pCO = 45
• (C)pO = 95 and pCO = 40
• (D)pO = 159 and pCO = 0.3