Simplify a raised to the negative third power over quantity 2 times b raised to the fourth power end quantity all cubed.
A. 8b12a9
B. quantity 8 times b raised to the twelfth power end quantity over a raised to the ninth power
C. 1 over quantity 6 times a raised to the ninth power times b raised to the twelfth power end quantity
D. 1 over quantity 8 times a raised to the ninth power times b raised to the twelfth power end quantity