Which of the following is not a mode of computer-assisted learning?

In the tutorial mode of computer-assisted learning, when the topic to be studied is divided into a sequence of short sections containing information and questions, what are these short sections called?

Assertion (A): Post-validation is a critical step in the development of computer-assisted learning modules. Reason (R): Post-validation helps in evaluating the effectiveness of the program with a sample group after implementation to ensure it meets learning objectives.