Solve Check for Extraneous Solutions $( x - 6 ) ^ { 1 / 2 } = - 2$

Multiple Choice

Solve. Check for extraneous solutions.
- $( x - 6 ) ^ { 1 / 2 } = - 2$

A) $\{ 4 \}$
B) $\{ 10 \}$
C) $\{ 16 \}$
D) $\varnothing$