Choose the correct option regarding partial pressure of gases and location:
| A. |
Atmospheric air: `PO_2=104` mmHg, `PCO_2=45` mmHg |
| B. |
Alveolar air: `PO_2=104` mmHg, `PCO_2=40` mmHg |
 |
| C. |
Blood in pulmonary vein: `PO_2=40` mmHg, `PCO_2=45` mmHg |
| D. |
Blood in pulmonary artery: `PO_2=15` mmHg, `PCO_2=40` mmHg |