Answer:
The correct answer is: A. frictional unemployment created by sectoral shifts.
Explanation:
Frictional unemployment is a type of search unemployment, which occurs when the worker is looking for a job, or being transferred from one job to another.
This type of unemployment is caused by several circumstances, in the scenario exemplified by the question above, frictional unemployment occurs due to sectoral changes, due to the popularity of the low-carb diet, so there was a migration of jobs from bakeries that need less workers to the steakhouses who need more workers.
