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[A] : CO2 is mainly transported in plas...

[A] : `CO_2` is mainly transported in plasma as `HCO_3^(-)` ions
[R]: The enzyme carbonic anhydrase in RBC speeds the formation of `HCO_3` ions

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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The correct Answer is:
A
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