John's House of Pancakes uses a weighted moving average method to forecast pancake sales. It assigns a weight of 5 to the previous month's demand, 3 to demand two months ago, and 1 to demand three months ago. If sales amounted to 2,900 pancakes in May, 2,200 pancakes in June, and 1,200 pancakes in July, what should be the forecast for August? (Round answer to the nearest whole number.) A. 15,500 OB. 1,722 OC. 2,456 OD. 2,100 OE. 1,200