At the beginning of the year, Patio Living Corporation has 550 planters in inventory. The company plans to sell 5,200 planters during the year and wants to have 1,200 planters in inventory at the end of the year. How many planters must Patio Living Corporation produce during the year?
A. 6,400
B. 6,950
C. 5,850
D. 3,450