The product of Ron's age, in years, and half of George's age, in years, is 42. If Ron is 5 years older than George is, then how old is Ron ?
(A) 7
(B) 8
(C) 9
(D) 10
(E) 12
(A) 7
(B) 8
(C) 9
(D) 10
(E) 12