While Waiting in Line to Buy One Cheeseburger for $1

question 107

Multiple Choice

While waiting in line to buy one cheeseburger for $1.50 and a medium drink for $1.00, Sally notices that she could get a value meal that contains both the cheeseburger and medium drink and also a medium order of fries for $2.75. She thinks to herself, "Is it worth the extra 25 cents to get the medium fries?" To an economist, Sally's decision is an example of

• A) marginal decision making.
• B) basing decisions on total, rather than marginal, value.
• C) an unintended consequence.
• D) the fallacy of composition.