Solve the following system of equations using the Gauss-Jordan method. 15x - 15y - Z=-46 - 9x - 25y - 2z= 3 12x + 15y + z=31 Select the correct choice below and, if necessary, fill in the answer boxes to complete your ch O A. This system has exactly one solution. The solution is (OCH.D. (Type an exact answer in simplified form.) OB. This system has infinitely many solutions of the form (LHIN 2), where z is any real nu (Type expressions using z as the variable.) O c. This system has no solution