Assuming that the company is interested in maximizing the total profit contribution, answer the following: Let R= number of units of regular model. C= number of units of catcher's model. (b) Develop a spreadsheet model and find the optimal solution using Solver. How many gloves of each model should Kelson manufacture? Regular Model = units Catcher's Model = units (c) What is the total profit contribution Kelson can earn with the given production quantities? (d) How many hours of production time will be scheduled in each department? (e) What is the slack time in each department? If your answer is zero, enter " 0