(A) : The fusion process is achieved by raising the temperature of the system
(R) : The fusion particles have enough K.E to overcome the coulomb repulsive behaviour.

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(A) is true but (R) is false

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

Both (A) and (R) are true and (R) is not the correct explanation of (A)

answer is A.

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Detailed Solution

The temperature must be high enough for the ions to cross the Coulomb barrier and fuse. A temperature of at least 100 million degrees Celsius is necessary for this. For the ions to fuse, they must be confined and in close proximity.

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