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Assertion : human heart shows double...

Assertion : human heart shows double circulation .
Reason : In double circulation the oxygenated and deoxygenated , blood are mixed and pass through the heart only once .

A

Both assertion and reason are true and reason is correct explanation of assertion .

B

Both assertion and reason are true but reason is not the correct explanation of asseration .

C

Asseration is true but reason is false

D

Both assertion and reason are false

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