1.

(A): Centrifugal force is reactionary force of centripetal force (R): A simple pendulum is oscillating in vertical plane then mean position net force on pendulum is zero.

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If both A ANDR are TRUE and R is the CORRECT explanation of A
If both A and R are true but R is not correct explanation of A
If A is true but R is false
If A is false but R is true

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