NEET Biology question

In the tissues, exchange of gases occurs between the blood and the tissue cells through the tissue fluids that surround the tissue cells. Blood that reaches the tissues has a partial pressure of oxygen of W mmHg, which is higher than that already present in the tissues, X mmHg. Similarly, the partial pressure of CO is higher in the tissues, Y mmHg, than in the blood, Z mmHg. What is the value of W, X, Y and Z normally (in mmHg)?

• (A)W-95, X-40, Y-45, Z-40Correct
• (B)W-95, X-40, Y-40, Z-45
• (C)W-40, X-45, Y-95, Z-40
• (D)W-45, X-95, Y-40, Z-40