Solve the Equation for Exact Solutions $\arcsin x + 2 \arctan x = \pi$

Multiple Choice

Solve the equation for exact solutions.
- $\arcsin x + 2 \arctan x = \pi$

A) $\{ 1 \}$
B) $\left\{ - \frac { \sqrt { 3 } } { 2 } , \frac { \sqrt { 3 } } { 2 } \right\}$
C) $\left\{ - \frac { \sqrt { 3 } } { 4 } , \frac { \sqrt { 3 } } { 4 } \right\}$
D) $\{ 0 \}$