Select the correct sequence of events that occur during the delivery of `O_(2)` from blood to tissue
P : Absoption of `CO_(2)` by the blood
Q : Reaction of absorbed `CO_(2)` with `H_(2)O` to form `H_(2)CO_(ul(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)^(-)` ions.
S : Combination of `H^(+)` with heme portion of `HbO_(2)` to release `O_(2)`
T : Combination of `HCO_(3)^(-)` with heme portion of `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