Which three statements describe a characteristic of profiles. (Choose three.)

Default profiles (such as 'tcp' and 'http') are built into BIG-IP and cannot be created or deleted - they serve as the root ancestors for all custom profiles of that type.

When creating a custom profile, you must select a parent profile, and the child inherits all settings not explicitly overridden, which is a foundational rule of the BIG-IP profile system.

Profile inheritance can be chained so that a custom profile inherits from a default profile (making it a child) while also serving as the parent for another custom profile, enabling layered customization.

Changes to a parent profile only affect child settings that have NOT been locally overridden - any setting explicitly customized in the child profile retains its custom value regardless of parent changes.

Virtual servers of type Standard require at least a TCP profile to function, making profile association mandatory rather than optional.