Pivot once about the circled element in the simplex tableau, and read the solution from the result. x1 x2 x3 s1 2 83 2 0 14 36 18 0 10 1 2 0 1 2. 3 -2 -1 -3 O A. X3 = 14, s2 = 12, s3 = 4, z = 42; x,, X2, S, = 0 %3D OB. X3 = 14, s2 = 12, s3 = -4, z = 42; x4, X2, S, = 0 OC. X3 = 14, s2 = - 12, s3 = 4, z = - 42; x1, X2, S1 = 0 O D. X3 = 14, s2 = -6, s3 = 4, z = 42; x4, X2, S1 = 0 %3D