j. Electricity costs of $5,000 per month plus 50.0004 per kilowatthour k. Perunit cost of plant superintendent's salary I. Salary of the nighttime security guard of $3,800 per month m. Repairs and maintenance costs of 53,000 for each 2,000 hours of factory machine usage II. Total direct labor cost 0. Straightline depreciation on factory equipment The cost graphs in the illustration below shows various types of cost behaviors. Graph 1 Graph 2 Graph 3 Graph 4 Graph 5 s : s| : s s s UActivity Base " ACtiViW 3659 U ACtiViW 3658 5' Activity Base 0 Activity Base For each of the following costs, identify the cost graph that best describes its cost behaVior as the number of units produced and sold increases: a. Sales commissions of $6,000 plus $0.05 for each Item sold V b. Rent on warehouse of 512,000 per month V c. Insurance costs of $2,500 per month V d. Perrunit cost of direct labor V e. Total salaries of quality control supervisors. One supervisor must be added for each additional work shift V f. Total employer pension costs of $0.35 per direct labor hour V g. Perrunit straighteline depreciation costs V h. Per-unit cost of direct materials V i. Total direct materials cost V j. ElectrICIty costs of $5,000 per month plus 50.0004 per kilowatthour V k. Per-unit cost of plant superintendent's salary V I. Salary of the nighttime security guard of $3,800 per month V