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A company hosts a database that runs on an Amazon RDS instance deployed to multiple...

A company hosts a database that runs on an Amazon RDS instance deployed to multiple Availability Zones. A periodic script negatively affects a critical application by querying the database. How can application performance be improved with minimal costs?

A.

Add functionality to the script to identify the instance with the fewest active connections and query that instance.

B.

Create a read replica of the database. Configure the script to query only the read replica.

C.

Instruct the development team to manually export new entries at the end of the day.

D.

Use Amazon ElastiCache to cache the common queries the script runs.

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