What are the values of recovery point objective (RPO) and recovery time objective (RTO) in Huawei synchronous remote replication?

What are the values of recovery point objective (RPO) and recovery time objective (RTO) in Huawei synchronous remote replication?
A . RPO ≈ 0
RTO = 0
B . RPO = 0
RTO ≈ 0
C . RPO = 0
RTO = 0
D . RPO > 0
RTO > 0

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Answer: A