Maryann and Don want to open their own deli. To do so, Maryann must give up her job, at which she earns $20000 per year, and Don must give up his part-time job, at which he earns $10000 per year. They must liquidate their money market fund, which earns $1000 interest annually. The rent on the building is $10000 per year, and expenses for such necessities as utilities, corned beef, and pickles are $35000 annually. What is the explicit cost per year of operating the deli?
a. $31,000
b. $76,000
c. $35,000
d. $45,000
e. $10,000