Which statement is wrong ?

Options

A. Diffusion capacity of `CO_(2)` is 20–25 times higher than `O_(2)`
B. The partial pressure of CO2 is 5–6 mmHg less in systemic artery than in pulmonary vein
C. The partial pressure of O2 is almost same in hepatic portal vein and in pulmonary artery
D. Blood is the medium for the transport atom of `O_(2)` and `CO_(2)`

Answer

B