Read the following statements (a-d) with respect to transport of gases
(a) Presence of low ${\mathrm{pCO}}_2$is the favourable condition for oxygen dissociation from Hb
(b) $\text{pO2}$is a major factor which could affect the binding of ${\mathrm{CO}}_2$with Hb
(c) Lesser the ${\mathrm{H}}^{+}$ions denote the lower the pH in the blood
(d) 100 ml of oxygenated blood can deliver around 5 ml of $O_{2 }$to the tissues in normal condition
In the above, the correct statements are