Let the vectors $\overrightarrow a$ and $\overrightarrow b$ be such that $| \overrightarrow a | = 3$ and $|\overrightarrow b | = \frac{\large \sqrt 2}{\large 3}$ , then $\overrightarrow a \times \overrightarrow b$ is a unit vector, if the angle between $\overrightarrow a$ and $\overrightarrow b$ is

Question

$$\begin{array} (A) \frac{\pi}{6} \quad & (B) \frac{\pi}{4} \quad & (C) \frac{\pi}{3} \quad &(D) \frac{\pi}{2} \end{array}$$