Final answer:
Frictional unemployment is a type of unemployment that occurs when individuals are temporarily between jobs or are actively searching for employment. The subcategory under frictional unemployment is seasonal unemployment (B).
Step-by-step explanation:
Frictional unemployment is a type of unemployment that occurs when individuals are temporarily between jobs or are actively searching for employment. It is usually a short-term and voluntary unemployment, resulting from the process of matching workers with job openings. Examples of frictional unemployment include individuals who have recently graduated and are searching for their first job, or workers who have resigned from their current job and are looking for better opportunities.Out of the given options, the subcategory of frictional unemployment is not provided. However, out of the options given, the correct subcategory under frictional unemployment is seasonal unemployment (B). Seasonal unemployment occurs when employment opportunities are only available during certain times of the year, such as agricultural or holiday-related jobs.