At 00:00, an enterprise data center goes down and the application goes offline.

At 00:00, an enterprise data center goes down and the application goes offline. The maximum allowable downtime is 4 hours. Enterprise After taking emergency measures, the data is restored at 3 a.m., the enterprise backs up system data once a day, and the last backup is performed at 9 a.m. the day before. The following is about RT. and the description of the RPO indicator, which is correct? Single selection