A company wants to increase the availability and durability of a critical business application. The application currently uses a MySQL database running on an Amazon EC2 instance. The company wants to minimize application changes.
How should the company meet these requirements?

A. Shut down the EC2 instance. Enable multi-AZ replication within the EC2 instance, then restart the instance.
B. Launch a secondary EC2 instance running MySQL. Configure a cron job that backs up the database on the primary EC2 instance and copies it to the secondary instance every 30 minutes.
C. Migrate the database to an Amazon RDS Aurora DB instance and create a Read Replica in another Availability Zone.
D. Create an Amazon RDS Microsoft SQL DB instance and enable multi-AZ replication. Back up the existing data and import it into the new database.