What statements are true regarding contact lists used for outbound campaigns?

Contact lists must contain the home phone number and first and last name fields, at a minimum

Contact lists are read-only and cannot be updated by the agents

A contact list can have its own unique structure, including an arbitrary number of phone number types

Each campaign can have its own contact list, or contact lists can be shared among campaigns

To use the callable times feature, each phone number column must have a corresponding time zone column containing the zone name