Which statements are true regarding the creation of an incident package file by using the EM Workbench Support？（）
- A You can add or remove the trace files to the package.
- B You can create the incremental incident package ZIP file for new or modified diagnostic information for the incident package already created.
- C You can add SQL test cases to the incident package.
- D You cannot create an incremental incident package when the physical files are purged rom the ADR.