one whole question

Activity based costing: O A. Is the only option for managers to use to allocate all costs between products. O B. Utilizes a single overhead rate for allocating all manufacturing overhead. O c. Determines a rate for each major activity in the manufacturing process. OD. Provides the managers with the best information for all businesses in all cases. Great Cruiseline offers nightly dinner cruises departing from several cities on the eastern coast If the United States including Charleston, Baltimore, and Alexandria. Dinner Cruise tickets sell for $50 per passenger. Great Cruiseline's variable cost of providing the dinner is $20 per passenger, and the fixed cost of operating the vessels (depreciation, salaries, docking fees, and other expenses) is $210,000 per month. The company's relevant range extends to 18,000 monthly passengers. If Great Cruiseline sells an additional 600 tickets, by what amount will its operating income increase (or operating loss decrease)? First, identify the formula, then compute the operating income increase (or operating loss decrease). Operating X