Which one of the following is NOT true of a transitional matrix?

It shows the proportion $($or number$)$ of employees in different job categories at different times.

It answers the questions: "Where did people who were in each job category go$?"$ and "Where did people now in each job category come from?"

It is useful in predicting external labour market trends.

It is useful for charting historical trends in the company's supply of labour.

Under stable conditions, it is useful for developing future strategies to address labour shortages or surpluses.