A company has multiple applications that use Amazon RDS for MySQL as is database. The company recently discovered that a new custom reporting application has in...

A company has multiple applications that use Amazon RDS for MySQL as is database. The company recently discovered that a new custom reporting application has increased the number of Queries on the database. This is slowing down performance.
How should a solutions architect resolve this issue with the LEAST amount of application changes?

A. Add a secondary DB instance using Multi-AZ. B. Set up a road replica and Multi-AZ on Amazon RDS. C. Set up a standby replica and Multi-AZ on Amazon RDS. D. Use caching on Amazon RDS to improve the overall performance.