Factor the Trinomial Completely $8 z^{4}-6 z^{2}-9$ A) $\left(2 z^{2}+3\right)\left(4 z^{2}-3\right)$ B) $\left(4 z^{4}+3\right)(2 z-3)$

Factor the trinomial completely.
- $8 z^{4}-6 z^{2}-9$

A) $\left(2 z^{2}+3\right) \left(4 z^{2}-3\right)$
B) $\left(4 z^{4}+3\right) (2 z-3)$
C) $\left(2 z^{4}+3\right) (4 z-3)$
D) $\left(4 z^{2}+3\right) \left(2 z^{2}-3\right)$