Fizaa A.

# Please help with augenmented matrix of a linear system of equations and is in a Reduced Echelon form

Matrix

$\begin{pmatrix}1&0&0&1\\ 0&b&c&2\\ 0&0&a&0\end{pmatrix}$

is an augenmented matrix of a linear system of equations and is in a Reduced Echelon form.

If the system has only 1 solution, then

A.)a=1, b=0, c can be any value

B.)a=1, b=1, c=0

C.)a=0, b=c=1

D.) a=0, b=1, c=0