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[A] : Ecology is the study of interrelat...

[A] : Ecology is the study of interrelationship between living organisms and their non-living environment .
[R] : The biotic community and non-living environment of an area function together to form an ecosystem .

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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