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[A] : Vegetative characters make their d...

[A] : Vegetative characters make their description more difficult .
[R] : It is because the vegetative character show greater plasticity as compared to floral features .

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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