Ouzts Corporation is considering two alternatives: A and B. Costs associated with the alternatives listed below: Alternative A Alternative B Materials costs $40,000 $56,000 Processing costs $37,000 $37,000 Equipment rental $13,000 $13,000 Occupancy costs $15,000 $22,000 Are the materials costs and processing costs relevant in the choice between alternatives A and B? (Ignore the equipment rental and occupancy costs in this question.) A both materials costs and processing costs are relevant B neither materials costs nor processing costs are relevant C only processing cost are relevant D only materials costs are relevant