At the beginning 2023, Mert sportswear production company budgeted its MOH costs at 3 different capacity level as follows: Capacity Level/ Usage (in mh) 2,000 3,000 4,000 5,000 Indirect Materials ($) 6,000 9,000 12,000 15,000 Depreciation ($) 2,000 2,000 2.000 2,000 Energy ($) 5,000 7,000 9,000 11,000 Total ($) 13,000 18,000 23,000 28,000 What is the flexible budgets formula for (Total MOH costs? a) $5/mh+$3,000 c) $3/mh+$2,000 b) $9/mh+$13,000 d) $8/mh c) None of these