Victory Tire Company makes a special kind of racing tire. Variable costs are $220 per unit, and fixed costs are $20,000 per month. Victory sells 600 units per month at a sales price of $300. If the quality of the tire is upgraded, the company believes it can increase the sales price to $325. If so, the variable cost will increase to $240 per unit, and the fixed costs will remain the same. If Victory decides to upgrade, how will it affect operating income?

A)	Operating income will decrease by $3000.

B)	Operating income will decrease by $12,000.

C)	Operating income will increase by $3000.

D)	Operating income will increase by $12,000.