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Which of the following is correct for th...

Which of the following is correct for the given assertion 'A' and reason 'R'?
Assertion : 'A' = Nitrogenous waste from arterial blood is removed, when blood passes through dialyser unit.
Reason : 'R' = Arterial blood of patient and dialysing liquid are made to flow on two sides of permeable membrane.

A

'A' and 'R' both are correct and 'R' is not correct reason for ‘A’.

B

A' and 'R' both are correct and 'R' is the correct reason for 'A'.

C

A' is correct and 'R' is wrong.

D

A' is wrong and 'R' is correct.

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