Rockwell Corporation manufactures and sells computer keyboards. The keyboard sells for $55 per unit and its variable costs per unit are $42. Fixed costs are $80,000 per month for sales volumes up to 40,000 keyboards. If more than 40,000 keyboards are sold, the fixed costs will be $110,000. The flexible budget would reflect what monthly operating income for a sales volume of 52,000 keyboards?

A. $ 566,000

B. $ 676,000

C. $ 596,000

D. $2,860,000