1 pt 15 of 40 ( Relevant costs are past coets that do nok difer among the atemative courses vant costs ore expected un co tstat do not d era oonwidered. Historical ocels are inelevant because they are siso past costs and, therofore, ifier among ahamative thur coues of ation oosts are irrelevant because they are past costs and, therefore, differ among alhermative future courses of OA on to alternative o urses ofdon bengoonside ndHb oal oses are men O C. Relevant costs are past costs that difer among the alternative cournes of action being conaidered. Historical costs c are imrelevant because they are future ocoels and, thenefone, cannot differ among atemative future courses of action D. Relevant costs are expected future costs that difer among the stemative courses of action being considered. Historical cts are imelevant beceuse they are pest coels and, herofone, canot dtfer among atermative tuture coursas of 6 9