(A): Helium is found in radioactive mine...

(A): Helium is found in radioactive minerals
(R): During `alpha`-decay, helium is formed and is occluded in radioactive minerals

A

Both A & R are true, R is the correct explanation of A

B

Both A & R are true, R is not correct explanation of A

C

A is true, R is false

D

A is false, R is true

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The correct Answer is:

A

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