$\text { The value of } \sqrt[4]{-81} \text { is}$-

$\pm \frac{3}{\sqrt{2}}(1 \pm i)$

$\pm \frac{3}{\sqrt{2}}(1 \pm 2 i)$

$\pm \frac{3}{\sqrt{2}}(2 \pm i)$

$\pm\frac{3}{\sqrt{2}}(1\pm i)$

a,d