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[A] : A Population is a unit of evolutio...

[A] : A Population is a unit of evolution .
[R] : Natural selection operates at the Population level .

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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