A Company Is Using a Single-AZ Amazon RDS for MySQL

Multiple Choice

A company is using a Single-AZ Amazon RDS for MySQL DB instance for development. The DB instance is experiencing slow performance when queries are executed. Amazon CloudWatch metrics indicate that the instance requires more I/O capacity. Which actions can a database specialist perform to resolve this issue? (Choose two.)

A) Restart the application tool used to execute queries.
B) Change to a database instance class with higher throughput.
C) Convert from Single-AZ to Multi-AZ.
D) Increase the I/O parameter in Amazon RDS Enhanced Monitoring.
E) Convert from General Purpose to Provisioned IOPS (PIOPS) .