The correct pairing of examples with event-driven and sequential-driven programming is:
event-driven programming – a messaging application that lets users call people
sequential-driven programming – an application that displays all the letters for kids to learn
Event-driven programming is characterized by actions occurring in response to events, such as user interactions (e.g., calling someone in a messaging app), while sequential-driven programming processes instructions in a specific order (e.g., displaying letters in an educational application).