When using remote replication technology to implement 3DC application scenarios, which of the following plans will be made? (Multiple choice)

When using remote replication technology to implement 3DC application scenarios, which of the following plans will be made? (Multiple choice)
A . Intra-city fiber synchronous remote replication
B . Intra-city Ethernet asynchronous remote replication
C . Offsite fiber synchronous remote replication
D . Offsite Ethernet Asynchronous Remote Replication

Answer: AC