d) e) $15.00 12. The per-unit amount of three different production costs for Hermione, Inc Cost A $12.00 $12.00 Cost B $15.00 20 00 $11.25 Cost C Production = 20,000| Production 80.000| What type of cost is each of these three costs? a) Cost A is fixed, Cost B is fixed, Cost C is variable. b) Cost A is fixed, Cost B is mixed, Cost C is variable. c) Cost A is mixed, Cost B is variable, Cost C is fixed. d) Cost A is variable, Cost B is fixed, Cost C is mixed. e) Cost A is variable, Cost B is mixed, Cost C is fixed