Answer
$B$
Work Step by Step
The point $(2,\frac{5\pi}{6})$ is obtained by rotating $\frac{5\pi}{6}=150^{\circ}$ counterclockwise to give an angle of $+\frac{5\pi}{6}$ and then moving $2$ units from the pole along the terminal side of angle $\frac{5\pi}{6}$.
The point is $B$.
