An application team uses an Amazon Aurora MySQL DB cluster with one Aurora Replica. The application team notices that the application read performance degrades when user connections exceed 200. The number of user connections is typically consistent around 180, with occasional sudden increases above 200 connections. The application team wants the application to automatically scale as user demand increases or decreases. Which solution will meet these requirements?

Topic #: - All AWS Certified SysOps Administrator - Associate Questions

A. Migrate to a new Aurora multi-master DB cluster. Modify the application database connection string.
B. Modify the DB cluster by changing to serverless mode whenever user connections exceed 200.
C. Create an auto scaling policy with a target metric of 195 DatabaseConnections.
D. Modify the DB cluster by increasing the Aurora Replica instance size.

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