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 AD
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