Furniture, Inc., estimates the following number of mattress sales for the first four months of 20x5: Month Sales January 5,000 February 7,000 March 6,500 April 8,000 Finished goods inventory at the end of December is 1,500 units. Target ending finished goods inventory is 30% of the next month's sales. How many mattresses need to be produced in January 20X5? O 7,100 mattresses O 6,500 mattresses 0 4,400 mattresses 5,600 mattresses