What is the Haldane equation used for?

• A. To measure the amount of oxygen converted to ozone for a given wavelength of UV light
• B. To measure the ratio of affinity of carbon monoxide and oxygen to bind to a haemoglobin molecule
• C. To measure the percentage of carbon monoxide that is oxidised to carbon dioxide in various levels of oxygen
• D. To calculate the percentage of oxygen addition and carbon dioxide removal during respiratory action