Which of the following statements about costs is correct? Fixed costs may or may not be relevant in decisions about whether a product line should be dropped. All future costs are relevant in decision making. Allocated joint costs that occurred before the split-off point are relevant in the decision of whether to sell a product at the split-off point or to process the product further. An avoidable cost is a cost that can always be completely eliminated no matter which alternative is chosen in decision making. Lantto Air uses number of flights as the measure of activity, in the cost formulas in its budgets and performance reports. The cost formula for plane operating costs is $34.720 of fixed costs per month plus $2,800 per flight of variable costs. The company expected its activity in June to be 75 flights, but the actual activity was 78 flights. The plane operating costs in the flexible budget for June would be closest to: $253,280 $343,720 $253,120 $134,248 Which of the following statements is NOT correct? A cost that can be avoided by choosing one alternative over another is relevant for decision making. A cost that is relevant in one decision may not be relevant in another decision. In a decision about whether to drop a business segment, the opportunity cost of the space occupied by the segment is not a relevant cost. In a decision of whether to drop a product, the product should not be charged for factory rent if the space in which the product is produced has no alternative use and the rental payment is unavoidable