I Need Help with my Algebra Question

12. (1 point) The reduced row echelon form of a system of linear equations in x and y or in x, y and z is given. For each system, determine whether it has a unique solution (in this case, find the solution), infinitely many solutions, or no solutions. 1 . O 0 . A. Unique solution: x = 0, y = 0 . B. Unique solution: x = 1, y = 1,z = 0 . C. No solutions . D. Unique solution: x = 0, y = 0,z=0 . E. Infinitely many solutions . F. None of the above 2. 0 0 4 0 0 -3 0 0 0 0 . A. Infinitely many solutions . B. Unique solution: x = -3, y =4 . C. Unique solution:x = 4, y = -3 . D. Unique solution: x = 0, y = 0,z =0 . E. No solutions . F. None of the above 3. 0 0 0 0 0 . A. No solutions . B. Unique solution: x = -2,y = -2 . C. Unique solution: x = 0, y = -2,z= -2. D. Infinitely many solutions . E. Unique solution: x = 0, y = -2 F. None of the above 4. O P 0 C - 4 0 0 0 4 . A. Unique solution: x = 4, y = -4,z = 4 . B. Unique solution: x = 4, y = -4, z= 0 . C. No solutions . D. Unique solution: x = 4, y = -4 . E. Infinitely many solutions . F. None of the above