D Question 7 Ecology Co. sells a biodegradable product called Dissol and has predicted the following sales for the first four months of the current year: Jan. Feb. March. April. Sales in units 2,500 3,100 3,700 2.800 Ending inventory for each month should be 15% of the next month's sales, and the December 31 inventory is consistent with that policy. How many units should be purchased in February? 3,010 3,100 O 3.10 2,830 O 3,700