Please answer the following multiple choice accounting question

Stones Manufacturing, sells a marble slab for $1,300. Fixed msls are 531,000, while the variable costs are $450 per slab. The company currently plans to sell 240 slabs this month. What is the margin of safety assuming 85 slabs are budgeted? O A. 3562.400 0 B. $31,000 0 0. $155,900 0 D. $263,900