Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.
(A)High `` pO _{2} `` , low `` pCO _{2} `` , less `` H ^{+} `` , lower temperature
(B)Low `` pO _{2} `` , high `` pCO _{2} `` , more `` H ^{+} `` , higher temperature
(C)High `` pO _{2} `` , high `` pCO _{2} `` , less `` H ^{+} `` , higher temperature
(D)Low `` pO _{2} `` , low `` pCO _{2} `` , more `` H ^{+} `` , higher temperature