Comprehensive and Detailed Step-by-Step
UI Action Types:
List banner button: A button that appears in the list view banner, allowing users to perform actions on multiple records or interact with the list itself.
Form button: A button that appears on a form, enabling users to execute server-side or client-side scripts.
Record navigation button: A button used to navigate between records or perform specific actions related to a record.
Why Other Options Are Incorrect:
Option B (Workflow action): This is not a valid UI Action type; workflows are managed separately.
Option D (List choice) and Option E (Form choice): These are not valid UI Action types; they might confuse users with list or form field options instead.
Reference:
ServiceNow Developer Documentation on UI Actions.