Joe's income is $500, the price of food (F) is $2, and the price of shelter (S) is $100. Which of the following bundles is in Joe's opportunity set?
A) 50 units of food, 5 units of shelter
B) 200 units of food, 2 units of shelter
C) 100 units of food, 1 unit of shelter
D) 150 units of food, 3 units of shelter
Answer: 100 units of food, 1 unit of shelter