Which of the following is NOT a type of unemployment?

C is the correct answer because "permanent" does not represent a recognized type of unemployment within the economic framework. In economic terms, there are various classifications of unemployment, each with specific causes and characteristics.

Frictional unemployment refers to the temporary period when workers are in between jobs or are entering the workforce for the first time. This type of unemployment is often short-term and can occur because people are transitioning from one job to another that better fits their skills or needs.

Cyclical unemployment is associated with the fluctuations in the economy, particularly during recessions or economic downturns when overall demand for goods and services declines, leading to job losses.

Seasonal unemployment occurs when industries slow or shut down for a season or a specific period of time each year, which affects workers in sectors such as agriculture, tourism, and construction.

In contrast, the term "permanent" does not signify a distinct category of unemployment and does not align with the established classifications used in economics. Types of unemployment are typically defined by their causes, and “permanent” lacks this context, making it the outlier among the options listed.