19. Production and sales estimates for June are as follows: Estimated inventory (units), June 1 Desired inventory (units), June 30 Expected sales volume (units): Area X Area Y Area Z Unit sales price 16,000 18,000 4,000 6,000 5,500 $20 The number of units expected to be manufactured in June is a. 15,500 b. 17,500 c. 16,500 d. 13,500