Solve the Absolute Value Equation or Indicate That the Equation $$\left| x ^ { 2 } - 1 x \right| = 0$$

Multiple Choice

Solve the absolute value equation or indicate that the equation has no solution.
- $$\left| x ^ { 2 } - 1 x \right| = 0$$

A) $\{ - 1,0 \}$
B) $\{ 0,1 \}$
C) $\{ - 1,0,1 \}$
D) $\varnothing$