题目内容：
The following information is available for a manufacturing company which produces multiple products:
(i) The product mix ratio
(ii) Contribution to sales ratio for each product
(iii) General fixed costs
(iv) Method of apportioning general fixed costs
Which of the above are required in order to calculate the break-even sales revenue for the company?
A.All of the above
B.(i), (ii) and (iii) only
C.(i), (iii) and (iv) only
D.(ii) and (iii) only
参考答案：