detail steps please

Applying Kirchhoff's Laws to the electrical network in the figure, the currents A [[/1 = 2, 12 = 2, 13 = 0]] 1, J2, and Is are the solution of the system. Assume Vi = 24v, V2 = 14v, while R1 = 50, R2 = 70, and Ry = 70. B [[/1 = 4, 12 = 3, 13 = (-1)]] Assume the net current on any junction is zero, that is _ I, = 0 also assume C [[/1 = 1, 12 = 1, Is = 0]] sum of I, . Re on any closed path is equal to the volta on such path. D None of These