Which of the following best explains why the market demand for JUULpods slopes down?
a. Because JUULpods are addictive, marginal benefit increases as an individual's consumption of JUULpods increases.
b. If JUULpods are too expensive, teenagers won't be able to afford them and won't buy them.
c. As vaping has become more popular, making JUULpods has become more profitable.
d. People get addicted to JUULpods, so they are willing to pay a high price for them.