Question

basic explanation of purpose of program and how user will interact with it
○ user story
○ user interface
○ abstraction
○ flow chart

Explanation:

User stories describe the needs of users in a simple way. The user - interface is how users interact with the program visually and functionally. Abstraction simplifies complex systems by focusing on essential features. Flowcharts show the sequence of steps in a program. For a basic explanation of a program's purpose and user interaction, user stories are most appropriate as they directly convey user - centric needs and how they will interact with the program.

Answer:

User Story