Watch the video that describes identifying a system with no solution. Click here to watch the video. Solve the system analytically. 3x + 3y-9z = 9 2x+y-z = 7 -x-y+3z=2 Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. OA. There is one solution. The solution set is {0}. (Simplify your answer.) B. There are infinitely many solutions. The solution set is (Simplify your answer.) OC. The solution set is . {z)), where z is any real number.