Practice Test 7

$\left(\frac{A^{\frac{3}{2}}\sqrt{B}}{C^{-\frac{1}{2}}}\right)\left(\frac{B^{-\frac{1}{2}}}{2\sqrt{AC}}\right)$.

Which of the following is equal to 6 if $f(x) = (x+3)^{2}-3$?