Find a Value Of $\arccos \left(\frac{-\sqrt{3}}{2}\right)$ In Radians $\frac{5 \pi}{6}$ B) $\frac{\pi}{6}$ C) $\frac{\pi}{3}$

Multiple Choice

Find a value of $\arccos \left(\frac{-\sqrt{3}}{2}\right)$ in radians.

A) $\frac{5 \pi}{6}$
B) $\frac{\pi}{6}$
C) $\frac{\pi}{3}$
D) $\frac{2 \pi}{3}$