Which Statements Are True About Huawei OceanStor V3 WORM Feature

Which statements are true about Huawei OceanStor V3 WORM feature? (Multiple Choice)

A) When a file is in the locked state, the file protection duration can be manually prolonged or shortened.
B) A locked file will shift to the expired state if the file system WORM clock value is greater than the file atime value.
C) After the WORM file system compliance clock has exceeded the file expiration time, an appending file will shift from the appending state to the expired state.
D) Only files of 0 byte can shift from the locked state to the appending state.