A firm can effectively use its operations function to yield competitive advantage through all of the following EXCEPT: o maintaining a variety of product options constant innovation of new products O setting equipment utilization goals below the industry average o customization of the product The Department of Motor Vehicle (DMV) testing center currently tests 80 drivers per day. DMV has six (6) testers who can test fourteen (14) drivers per day. Testers are complaining about being too busy and the center being understaffed. a. What is the utilization of testers? (5 points) b. In order to achieve 80% utilization of the testers, how many testers should be added at the center? [10 points)