zippy company has a product that is currently sells in the market for $30 per unit. zippy has developed a new feature that, if added to the existing product, will allow zippy to receive a price of $45 per unit. The total cost of adding this new feature is $39.000 and zippy expects to sell 2500 units in the coming year. What is the net effect on next-year's operating income of adding the feature to the product? a) $ 3000 Increase in operating income b) $ 1500 increase in operating incorre c) $ 1500 decrease in operating Income d $ 2500 decrease in operating Income e) $ 3500 decrease in post operating Income