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33. Xebex Pty Ltd is considering whether to make or buy a component used in the production of Faz (p. 908) Machines. The annual cost of producing the 100 000 components used by the company is as follows. Direct variable manufacturing costs $300 000 Direct fixed manufacturing costs $100 000 Allocated overhead $50 000 If Xebex were to discontinue production of the component, direct fixed manufacturing costs would be reduced by 80 per cent. Xebex should buy the 100 000 components if the cost of purchasing per unit is less than what amount? A. $4.5 0 B. $4.0 0 C. $3.8 0 D. $3.0