Use Gaussian elimination to find the complete solution to the following system of equations, or show that none exists. 5x+17y+4z 14 2x + 7y+3z=-6 x+3y-2z 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 {(..)}. (Simplify your answers.) B. There are infinitely many solutions. The solution set is {(z)}, where z is any real number. (Type expressions using z as the variable. Use integers or fractions for any numbers in the expression.) C. There is no solution. The solution set is 0.