An Augmented Matrix That Represents a System of Linear Equations $$\left[ \begin{array} { r r r r r } 1 & 0&0 & \vdots&2 \\0 & 1 & 0 & \vdots & 3 \\0 & 0 & 1 & \vdots &4\end{array} \right]$$

Multiple Choice

An augmented matrix that represents a system of linear equations (in variables x, y, and z) has been reduced using Gauss-Jordan elimination.Write the solution represented by the augmented matrix. $$\left[ \begin{array} { r r r r r } 1 & 0&0 & \vdots&2 \\0 & 1 & 0 & \vdots & 3 \\0 & 0 & 1 & \vdots &4\end{array} \right]$$

A) x = 0, y = 0, z = 0
B) x = 2x, y = 4y, z = 3z
C) x = 2, y = 3, z = 4
D) x = -2, y = -3, z = -4
E) x = 2, y = 0, z = 0