The $5^{th}$ term from the end in the expansion of $\bigg(\large\frac{x^3}{2}-\frac{2}{x}\bigg)^{12}$ is ?

Question

$\begin{array}{1 1} =7920x^4 \\ =-7920x^4 \\ =\frac{7920}{x^4} \\ =\frac{-7920}{x^4} \end{array} $