In the following questions, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option: 
 
Assertion (A) : When a die is rolled once, the probability of getting a prime is (\frac{1}{2}\).
 
Reason (R) : On the faces of a die, prime numbers are \(1\), \(2\), \(3\), \(5\).