A company wants to ensure high availability and disaster recovery for its critical web application. The web application currently resides in a single region within two Availability Zones. Due to regulatory compliance, the data must reside within the country, and the application must continue to operate even if one full region were to go offline. Which of the following approaches will BEST meet these requirements?
Create a secondary site in another region within the same country and employ Amazon Route 53 health checks and traffic management.
Expand the application to include additional Availability Zones in the same region.
Add read replicas of the database in different Availability Zones across two regions, without configuring traffic management.