Two alternatives, code-named X and Y, are under consideration at Guyer Corporation. Costs associated with the alternatives are listed below. Are the materials costs and processing costs relevant in the choice between alternatives X and Y ? Multople Chaice Nether materlalf costs nor proceseing costs are relovant Only processing costs are relevart Oniy matenas costs are relevant Eoth matesishs conts snd procesting conts are re levint