Find the solution to the system of equations.
x-2y -Z= 3
x+2y+Z= -1
у+ 3z= -1
А. x=-1, y = 1, z= 0
B. х = 1, y=-1, z= 0
C. х= 1, y = 1, z = 0
D. x=-1, y = -1, z = 0