Winthrop Corporation produces and sells a single product Data for that product are; Sales price per unit 5260 Variable cost per unit 5140 Fbred expenses for the month 5670,000 Currently selling 13,000 units Upper management is considering using a biodegradable packaging which costs $12 mora por unit but it produces hits wasbe in the long run Management place to Increase advertising by $14.000 in the first month to advertise this new feature to their packaging They believe that environmentally friendly people will switch to their product resulting in an increase in sales of 3 500 units per month What should be the overall effect on the company's monthly operating income in the first month at this change is implemented? A. Increase of $305,000 OB. Decrease of $278.000 OCDecrease of $306.000 OD. Increase of $278,000