Fixed expenses are $30,000 per month and the company is selling 1.000 units per month. The marketing manager arewes that an $8,000 increase in the monthly advertising budget would increase monthly sales by $20,000. Which of the following is the correct statement regarding this decision? (Hint : colculate incremental contribution margin using the CM ratio and compare that against the incremental increase in cost) The increase in the advertising budget should not be approved because it would lead to a decrease in net income of $2,000 The increase in the advertising budget should not be approved because it would lead to a decrease in net income of $12,000 The increase in the advertising budget should be approved because it would lead to a increase in net income of $12,000 The increase in the adverthing budget should be approved because it would lead to a increase in net income of $8,000