Which of the following descriptions about the principle of the Flash Storage HyperReplication feature is wrong?

Which of the following descriptions about the principle of the Flash Storage HyperReplication feature is wrong?
A . In synchronous remote replication mode, after the primary storage system receives a write I/O request from the host, it will send the write I/O request to the slave LU and the primary LUN at the same time. When both the primary LUN and the slave LUN are written successfully, it will return the write I/O success result to the host.
B . Asynchronous remote replication mode relies on snapshot technology. When the host initiates a write operation request, the storage system will return a successful write request to the host only if the write from the LUN is successful.
C . Remote replication can be divided into two modes: synchronous and asynchronous. The principles of writing data to the slave LUN are different in different modes.
D . In synchronous remote replication mode, the primary LUN of the production site and the secondary LUN of the disaster recovery site will establish a synchronous remote replication relationship and start the initial synchronization.

Answer: B