8 of 12 (8 c Maintenance costs at Seaside Manufacturing over the past six months are listed in the following table. Maintenance cost $13,600 $14,720 $12,160 $14,480 $14,980 $13,200 Machine hours 15,500 16,900 13,900 16,600 17,600 15,000 Month January February March April May. June ne hour be? Using the high- low method, what would the variable maintenance cost per mach OA. $0.85 OB. $0.76 OC. $0.87 O D. $1.31