Solve using Gauss-Jordan elimination 3x + 2x2 2x2 - 6x3 = -28 4x, +26x2 - 72x3 = - 136 Xy + 4x2 - 11x3 = - 23 Select the correct choice below and fill in the answer box(es) within your choice O A The unique solution is xy = and X3 = OB The system has infinitely many solutions. The solution is X, = and X3 = (Simplify your answers. Type expressions using t as the variable) OC The system has infinitely many solutions. The solution is X1 X2 =s, and x3 = (Simplify your answer. Type an expression using s and t as the variables.) D. There is no solution