We know that many people knowingly engage in risky or unhealthy behaviors such as smoking, eating fatty foods, taking drugs, etc. Which concept from Chapter 17 in Olsen can help to explain this irrational behavior?

A. Discounting adverse consequences because they occur in the future

B. Most people expect to die in accidents before the adverse effects of their risky behavior can kill them so they are willing to engage in these behaviors.

C. Marginal cost analysis because individuals only engage in risky behavior up to the point where their marginal cost of related healthcare equals the discounted marginal benefit the receive from the behavior.

D. Marginal revenue analysis because individuals evaluate the marginal increase in risk with each cigarette they smoke or each bite of double cheeseburger they take.