Solve the Equation for Exact Solutions $6 \arcsin x = \pi$

Multiple Choice

Solve the equation for exact solutions.
- $6 \arcsin x = \pi$

A) $\{ - 5 + 3 \sqrt { 2 } \}$
B) $\left\{ \frac { 1 } { 2 } \right\}$
C) $\left\{ - \frac { 3 } { 4 } , \frac { 3 } { 4 } \right\}$
D) $\{ 2 \}$