I hope for a solution in a minute

Which is the correct solution for the system of equations corresponding to the augmented matrix 12111 011 2 ? 0014 Exactly one option must be correct) a) x = 3, y = -3, z = 4 b)x= -1, y = -1, z = 4 c) x = 1, y = -2, z = 4 d) x = -3, y = 0, z = 4