Answer:
D) seasonally unemployed.
Step-by-step explanation:
A lifeguard who is out of work in the winter is considered seasonally unemployed. Seasonal unemployment refers to a type of unemployment that occurs during specific seasons or times of the year when certain industries or jobs experience a temporary decrease in demand. In this case, the demand for lifeguards typically decreases during the winter months when outdoor swimming activities decrease due to colder weather. Therefore, the lifeguard's unemployment is a result of a seasonal pattern rather than being unemployed due to factors such as lack of skills or available jobs (structural unemployment), fluctuations in the business cycle (cyclical unemployment), or transitional periods between jobs (frictional unemployment).