The given graph can be used to realise economical forecasting, ad seen in the graph the economist may predict that how many people will be out of work in the next year.
What is forecasting?
Forecasting is the process of estimating the future event based on the information available in the present and on the basis of past observations.
Example:
An investor predict that what will be the share price after some times based on the past observations and the present conditions of any company, here the investor uses the method of forecasting.
Inflation, interest rates and unemployment rates can also predict on the basis of forecasting.
Therefore, option C is correct.
Learn more about forecasting, refer:
https://brainly.com/question/1387762
