Assume that a business produces kerosene as follows: Batch size 5,400 gallons Cost of producing kerosene $2,500 per batch Selling price $2.90 per gallon The kerosene can be processed further to yield gasoline as follows: Initial batch size 5,400 gallons Less evaporation (25%) (1,350) (5,400 25%) Output batch size 4,050 gallons Additional processing costs $800 per batch Selling price $4.70 per gallon What is the amount of differential income from further processing the gasoline per batch? a. $4,050 b. $8,100 c. $2,575 d. $9,518