Consider these 3 items that you purchase:
I. A fast-food hamburger or sandwich (like Jimmy John's)
II. The water in your house or apartment that flushes your toilets
III. A shirt purchased at a store like Urban Outfitter or H&M
Which of the following is most accurate?
a) Goods with elastic demand
b) Goods with inelastic demand
c) Substitute goods
d) Complementary goods