Please help with the following two questions. Thank you very much!

When used in oost-volume-prot analysis, sensitivity analysis Ff. A. Determines the most protable mix of products to be sold. I". B. Allows the decision maker to introduce probabilities in the evaluation of decision alternatives. "'a C. Is done through various possible scenarios and computes the impact on prot of various predictions of future ' events. /"\\.I D- ls limited because, in cost-volume-prot analysis, costs are not separated into xed and variable components. Which one of the following would cause a protable company's margin of safety to decrease? A. A. A decrease in sales units. \"N B. A decrease in xed costs. 5. c. A decrease in variable costs. 5. D. An increase in selling price