Production and sales estimates for March for the Robin Co. are as follows: 18,400 Estimated inventory (units), March 1 Desired inventory (unit), March 31 19,900 Expected sales volume (units): Area M Area L 6,700 8,400 7,400 $14 Area o Unit sales price The number of units expected to be manufactured in March is ) O a. 60,800 b. 24,000 c. 22,500 Od. 42,400