Next Year's Sales Forecast Shows That 20,000 Units of Product

Next year's sales forecast shows that 20,000 units of Product A and 22,000 units of Product B are going to be sold for prices of $10 and $12 per unit, respectively. The desired ending inventory of Product A is 20% higher than its beginning inventory of 2,000 units. The beginning inventory of Product B is 2,500 units. The desired ending inventory of Product B is 3,000 units.
-If the expected sales volume for the current period is 9,000 units, the desired ending inventory is 200 units, and the beginning inventory is 300 units, the number of units set forth in the production budget, representing total production for the current period, is

A) 9,000 units
B) 8,900 units
C) 8,700 units
D) 9,100 units