Solve the following system of equations using matrices. Use Gaussian elimination with back substitution or Gauss-Jordan elimination.

3x1+ 5x2- 8x3+ 5x4= -8

x1+ 2x2- 3x3+ x4= -7

2x1+ 3x2- 7x3+ 3x4= -11

• 4x1+ 8x2- 10x3+ 7x4= -10
• A.{(1, -5, 3, 4)}
• B.{(2, -1, 3, 5)}
• C.{(1, 2, 3, 3)}
• D.{(2, -2, 3, 4)}