Which of the following statements is NOT correct, when comparing RDS with a self-built database?

Which of the following statements is NOT correct, when comparing RDS with a self-built database?
A . Self-built database support quick deployment and elastic scaling.
B . RDS requires no O&M while self-built database require a dedicated DBA for maintenance, which results in high HR costs.
C . RDS features a high availability of 99 95% while self-built databases require you to implement data protection primary-standby replication, and RAID all by yourself.
D . RDS provides automatic backup while self-built databases require you to prepare storage space for backup copies and regularly verify that these copies can be restored.

Answer: A

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