Solve the system by using matrix reduction. 6w -x-3y +4z = -2 9w -3x-9y +3z = -6 5w -x-3y+3z = -2 6w +x+3y+8z = 2 Find all solutions. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. OA. The system has an infinite number of solutions characterized by w= OB. The system has an infinite number of solutions characterized by w = OC. The system has a unique solution. The solution is w= ○ D. The system has no solution. 1 X= . y=r, z=s, ∞