Given the following system of equations solved using Gaussian Elimination, from the REF matrix given, what is the solution? It of 2 31 Row 1 2 19 2 19 Operations 0 12 13 3 2 25 Gous, 10 1 5. Elia. A 3x+4+ 22 = 31 1 X + y+ 22 - 19 Solution = ? * + 34+22 = 25 Select one: O a. (19, 13, 5) O b. (6, 3, 5) O C. (-19, -13, -5) O d. (6, 23, -5)