Many beaches have a lifeguard on duty during the summer but not during the winter. The most likely explanation for this is that:
A)the marginal cost of having a lifeguard on duty varies over the year and tends to be lower during the summer.
B)the marginal benefit of having a lifeguard on duty is higher during the summer when more people are at the beach.
C)people understand that if you go swimming at the beach during the winter, you do so at your own risk.
D)there is no danger of drowning at the beach during the winter.

Question

Quizplus · Accepted Answer

The presence of more people at the beach during the summer means that the benefit of having a lifeguard on duty is higher during that season as more people are potentially in danger of drowning. In contrast, during the winter, fewer people visit the beach, and the marginal benefit of having a lifeguard on duty is lower. Therefore, it is not economically feasible to have a lifeguard on duty during the winter.

Many Beaches Have a Lifeguard on Duty During the Summer