Please explain how you got the answer. Thanks in advance!

To follow is information about the units produced and total manufacturing costs for Pine Enterprises for the past six months. Month January February March April May June Number of units produced 8,000 7,500 6,600 6,800 4,400 7,000 Total manufacturing costs $6,500 $8,000 $7,550 $7,650 $4,000 $7,750 Using the high - low method, what will the total monthly manufacturing costs be if the company produces 9,200 units? (Round intermediary calculations to the nearest cent.) OA. $7,328 O B. $6,348 OC. $11,868 OD. $980