can you help me the three please

15. The amount of actual or expected sales revenue decline that may occur before an operating loss happens is referred to as a. contribution margin (CM) ratio. b. margin of safety. c. total costs (fixed + variable costs). d. relevant range. 16. Inve a. $16,935 b. $16,900 c. $18,431 d. $18,125 17. Direct Materials, Direct Labor, and Factory Overhead costs for processing department B in a factory were $300,000,$180,000, and $20,000 respectively during June 2022. Department B's beginning Work in Process (WIP) Inventory cost on June 1,2022 , was $50,000, and its ending WIP Inventory cost on June 30 was $65,000. Product was transferred to the next department C during June 2022 for further processing. What was the cost of the product transferred from department B to department C during June 2022? a. $485,000 b. $435,000 c. $550,000 d. $615,000