Solve Check for Extraneous Solutions $\left(x^{2}-7 x+14\right)^{1 / 2}-1=1$ A) $\{-2,-5\}$ B) $\{2,-5\}$

Multiple Choice

Solve. Check for extraneous solutions.
- $\left(x^{2}-7 x+14\right) ^{1 / 2}-1=1$

A) $\{-2,-5\}$
B) $\{2,-5\}$ .
C) $\{2,5\}$
D) $\varnothing$