solving this system and trying to figure out which solution will apply

15x2y+z= 34 20x+y =55 1i]x2y+z= 19 Solve the following system of equations using the Gauss-Jonian method. Select the correct choice below and, if necessary, ll in the answer boxes to complete your choice. C.) A This system has exactly one solution. The solution is {EMBED . [Type an exact answer in simplied form.) 0 B- This system has innitely many solutions of the form (Dag) where z is any real number. [Type expressions using 2 as the variable.) 0 C. This system has no solution