Computer Science for IGCSE & O level - Automated And Emerging Technologies (Section 1 - No. 15)

Which of the following is an example of a classification problem?

Predicting the price of a stock.

Identifying whether an email is spam or not.

Predicting the sales of a company.

Forecasting temperature.

Classifying whether the email is spam or not is a classification because the output is a class (spam or not spam).