A construction company wants to assign three workers to three sites to work in. The owner wishes to assign the sites so that total cost is minimized and each site must have one worker assigned to it and each worker can only be assigned to one site. I Job 1 Job 2 Job 3 Worker A $2 $4 $6 Worker B $4 $8 $12 Worker C $6 $12 $18 a- Formulate as a linear programming. b- Use the Hungarian method to find the optimal solution.