An online stock trading application is deployed to multiple Availability Domains in the us-phoenix-1 region. Considering the high volume of financial transactions that the trading application handles, the company has hired you to ensure that the data stored by the application is scalable, highly-available, and disaster resilient. In the event of failure, the Recovery Time Objective (RTO) must be less than 2 hours to meet regulatory compliance requirements. Which Disaster Recovery strategy should be used to achieve the RTO requirement in the event of system failure? (Choose the best answer.) 

Answer options:

A. Configure your application to use synchronous master-slave data replication between Availability Domains.
B. Configure hourly block volumes backups through the Storage Gateway service.
C. Store hourly block volumes backup to NVME device under a compute instance and generate a custom image every 5 minutes.
D. Configure hourly block volumes backups using the Oracle Cloud Infrastructure (OCI) Command Line Interface (CLI).

A