If (5^15)(9^8)=3(15^x), what is the value of x? Select the correct option.
A) 7 B) 9 C) 11 D) 13 E) 15

Rationale: "( 5 ^ 15 ) ( 9 ^ 8 ) = 3 ( 15 ^ x ) = > 5 ^ 15 * 3 ^ 16 = 3 * 3 ^ x * 5 ^ x = > 5 ^ 15 * 3 ^ 16 = 3 ^ ( x + 1 ) * 5 ^ x value of x = 15 answer e"
Answer: E