You purchase a new truck and want to write off the expenses of maintaining this truck in your schedule C business, which of the following is (are) true? a can use the federal standard mileage rate multiplied by the number of total business miles you have. b. can use the federal standard mileage rate multiplied by the number of total miles you have. c. can take everything that you spent on the truck and hope that you dont get audited d. can use actual expenses multiplied by the business percentage of the use of the truck e. can guess what your gas, oil and maintenance costs and then multiply times the business percentage