2- Solve the following LP using dual simplex method and check all statements that are correct. minimize z=521 + 7:22 subject to: 2.01 +3.02 > 42 3.01 + 4x2 > 60 X] + 22 > 18 21,22 > 0 a) b) d) 24 is the leaving variable on the second iteration Optimal value of z is 119 22 is the entering variable on the first iteration 25 is the leaving variable on the second iteration 23 is the leaving variable on the second iteration Optimal value of z is 102 21 is the entering variable on the first iteration Optimal value of z is 105 e) 8) h)