問題文
A hospital tracks Ward records as the detail side of a master-detail relationship with Building. Each ward record was created under the wrong building and must be moved. The administrator finds that the Building field cannot be edited on existing ward records. What is the cause?
選択肢
- Reparenting is not allowed by default in master-detail relationships, and the option must be enabled on the relationship definition.
- The page layout marks the field as read-only, so the value can be changed only through the API.
- The Building field is read-only because a roll-up summary field uses it and must be deleted first.
- Field-level security is set to read-only for the administrator profile on that field.