Cullumber Company is deciding whether or not to discontinue one of its divisions. The division's contribution margin is $27000 per year. The fixed costs charged to the division total $34000, but $12000 would be eliminated if the division is discontinued. If the division is eliminated, the overall operating income will a) decrease by $12000.

b) increase by $27000.

c) decrease by $5000.

d )decrease by $15000.