The standard Lead Rating field has picklist values of Hot, Warm, and Cold. A list of new leads was importance without errors even though several records had the value of Unrated in the Rating field. How were these records added without error?

A. The Restricted picklist checkbox was unchecked.

B. Field-level security was set to Visible for all profiles.

C. A global picklist value set was used to populate the picklist.

D. The Add to All Record Types checkbox was selected.