Jillian Inc produces leather handbags. The production budget for the next four months is: July 5,500 units, August 7,000, September 7,800, October 8,400. Each handbag requires 2.2 hours of unskilled labor (paid $15 per hour) and 2.3 hours of skilled labor (paid $22 per hour). How many total labor hours will be budgeted for September?

A. 7,800

B. 35,100

C. 17,160

D. 17,940