Use the Gauss-Jordan Method to Solve the System of Equations $x-y+z=-7$

Multiple Choice

Use the Gauss-Jordan method to solve the system of equations.
- $x-y+z=-7$
$x+y+z=1$
$\mathrm{x}+\mathrm{y}-\mathrm{z}=11$

A) $(2,-5,4)$
B) $(-5,2,4)$
C) No solution
D) $(2,4,-5)$