Which one of the followings statements is not correct? (a) Total volume of air a person can expire after a normal inspiration is called expiratory capacity. (b) Binding of oxygen with haemoglobin is primarily related to partial pressure of CO2 . (c) Every 100 ml of deoxygenated blood delivers approximately 4 ml of CO2 to the alveoli. (d) Every 100 ml of oxygenated blood can deliver around 5 ml of O2 to the tissues under normal physiological conditions