Two alternatives, code-named X and Y, are under consideration at Afalava Corporation. Costs associated with the alternatives are listed below. Alternative X Alternative Y Materials costs........ $37,000 $37,000 Processing costs...... $38,000 $53,000 Equipment rental.... $12,000 $26,000 Occupancy costs...... $16,000 $26,000 Are the materials costs and processing costs relevant in the choice between alternatives X and Y