a) (7 marks) Classify the following costs for Rainbow Ice Cream Pty. Cost Item Amount Classification Condensed milk $3,000 Factory electricity expense $4,400 Production line worker's salary $7,000 Sales commission $2,600 Vanilla essence $1,200 Office building depreciation $2,800 Ice cream machine maintenance expense $1,800 For money amounts, round your answer to the nearest dollar. Do not include $. Do not use comma separators. Do not use negative numbers nor brackets. For example, 123456 would be the correct format. b) (1 mark) The total prime cost is c) (1 mark) The total conversion cost is d) (1 mark) The total production cost is