Production and sales estimates for May for the Cardinal Co. are as follows: 19,500 19,300 Estimated inventory (units), May 1 Desired inventory (units), May 31 Expected sales volume (units): Area W Area X 6,000 7,000 8,000 Area Y Unit sales price $20 The number of units expected to be sold in May is Select one: o a. 21,000 O b. 3,700 O O c. 22,800 d. 18,300