A student writes the given system of equations in augmented matrix form to solve them by the gaussian elimination method. which of these would be the first elem

A student writes the given system of equations in augmented matrix form to solve them by the Gaussian Elimination method. Which of these would be the first element of the matrix replaced with zero while using the Gaussian Elimination method? X+y+z=3 x+2y+2z "5 3* *4y+4z=11 Select one O a. 11 Ob.1 Oc.3 Od.s