39. Aaron is a self-employed practical nurse who works out of his home. He provides nursing care for disabled persons living in their residences. During the day he drives his car as follows. Miles Aaron's home to patient Louise Patient Louise to patient Carl Patient Carl to patient Betty Patient Betty to Aaron's home 12 10 Aaron's deductible mileage for each workday is: a. 10 miles. b. 12 miles c. 20 miles. d. 22 miles. e. 32 miles