Computer Science for IGCSE & O level - Algorithm Design And Problem Solving (Section 4 - No. 28)

What happens if the value entered does not pass the data validation check?

The program crashes.

The data is automatically corrected.

An error message is displayed, and the user is prompted to re-enter the data.

The program continues, but with a warning message.

The user should be informed and allowed to correct the problem.