The BEST Example of a Frictionally Unemployed Individual Is

The BEST example of a frictionally unemployed individual is

A) Charles, who has lost his job as an autoworker because of increased imports and can't find a good job that utilises his skills.
B) Sam, who lost his job as a real estate salesperson when the housing market went soft because of a recession.
C) Mary, who quit her job to find work closer to her home.
D) Sandy, who has few skills and is no longer looking for work.