Let $\overrightarrow{a}, \overrightarrow{b}$ and $\overrightarrow{c}$be three unit vectors such that $\overrightarrow{a} \times (\overrightarrow{b} \times \overrightarrow{c}) = \large\frac{3}{2}(\overrightarrow{b}+\overrightarrow{c})$. If $\overrightarrow{b}$ If $\overrightarrow{b}$ is not parallel to $\overrightarrow{c}$ , then the angle between $\overrightarrow{a}$ and $\overrightarrow{b}$ is :

Question

$\begin{array}{1 1}(1)\large\frac{3 \pi}{4} \\ (2)\large\frac{\pi}{2} \\ (3)\large\frac{2 \pi}{3} \\ (4)\large\frac{5 \pi}{6} \end{array} $