J.C. Howard's medical testing company in Kansas wishes to assign a set of jobs to a set of machines. The following table provides the production data of each machine when performing the specific job: Machine Job A B C 9 10 GOOD 11 5 A UN- 9 11 12 8 13 a) The optimal assignment of jobs to machine that will maximize total production is: Machine A Machine B Machine C Machine D b) The total production of the assignment = units (enter your response as a whole number)