109. Joe's Taco Hut can purchase a delivery truck for $20,130!) and Joe estimates it will generate a net inoome (after taxes, maintenance and operating costs} of $4.000 per year. His other option is to go to work for someone else earning net income of $3.000 per year. He should: A. purchase the truck it the real interest rate is less than 15%. B. not purchase the truck if the real interest rate is greater than 1%. C. purchase the truck it the real interest rate is greater than 5%. D. purchase the truck if the real interest rate is less than 5%