Choose the right sequential phenomena among following during the delivery of `O_(2)` from blood to tissue
P. Absorption of `CO_(2)` by the blood
Q. Reaction of absorbed `CO_(2) " with " H_(2)O` to from `H_(2)O_(3)` within RBC and its conversion into `H^(+)` and `HCO_(3)^(-)` ions
R. Reaction of absorbed `CO_(2) " with " H_(2)O` in plasma to form `H_(2)CO_(3)` and its conversion into `H^(+) " and " HCO_(3)^(-)`
S. Combination of `H^(+)` with haem portion of `HbO_(2)` to release `O_(2)`
T. Combination of `HCO_(3)^(-)` with heme portion `HbO_(2)` to form reduced haemoglobin and release of `O_(2)`

Options

A. p,q,t
B. p,r,s
C. p,q,s
D. p,r,t

Answer

C