Adrian's first step in solving this rational equation is to simplily it by multiplying both sides by the least common multiple (LCM) of the denominator. Which is the simplest expression he can use to do this?

4x/(x²-9) - 4/(3x-9) = 1/6

O 6(x+3)(x-3)
O 6x(x-9)
O 3(x²-9)(3x-9)
O 18x²