Final answer:
Cindy Lou Who will reduce her consumption of Zlurp.
Step-by-step explanation:
In this scenario, Cindy Lou Who, a resident of Whoville, decides to reduce her consumption of Zlurp, the tasty refreshment that the residents love drinking. The willingness to pay for each additional bottle of Zlurp decreases to zero after the fifth bottle. With the cost of producing a bottle of Zlurp at $3.50 and the inclusion of an external cost of $1 for pollution, the total surplus per person decreases. To reduce her consumption, Cindy Lou Who will simply drink fewer bottles of Zlurp.