A company manages an application that stores data on an Amazon RDS for PostgreSQL Multi-AZ DB instance. Increases in traffic are causing performance problems. The company determines that database queries are the primary reason for the slow performance. What should a solutions architect do to improve the application's performance?

• AServe read traffic from the Multi-AZ standby replica.
• BConfigure the DB instance to use Transfer Acceleration.
• CCreate a read replica from the source DB instance. Serve read traffic from the read replica.
• DUse Amazon Kinesis Data Firehose between the application and Amazon RDS to increase the concurrency of database requests.