The following table shows data on the average number of customers processed by several bank service units each day. The hourly wage rate is $25, the overhead rate is 1.0 times labor cost, and material cost is $5 per customer. Unit ABCD Employees 4583 Customers Processed/Day 3482 36 40 60 20 a) Compute the labor productivity and the multifactor productivity for each unit. Use an eight-hour day for multifactor productivity. b) Suppose a new, more standardized procedure is to be introduced that will enable each employee to process one additional customer per day. Compute the expected labor and multifactor productivity rates for each unit. c) A property title search firm is expecting using online software to increase its search productivity. Currently an average of 40 minutes is needed to do a title search. The researcher cost is $2 per minute. Clients are charged a fee of $400. Company A's software would reduce the average search time by 10 minutes, at a cost of $3.50 per minute. Company B's software would reduce the average search time by 12 minutes at a cost of $3.60 per minute. Which option would have the higher productivity in terms of revenue per dollar of input?