What is the specific analysis or computation to be performed in Exercise 5-15 regarding Operating Leverage for Magic Realm, Incorporated, considering the sale of 16,400 units at a selling price of $61 per game and fixed expenses?

A) Determine the variable expenses per unit.
B) Calculate the total revenue for Magic Realm, Incorporated.
C) Assess the contribution margin per unit.
D) Analyze the degree of operating leverage.