What should a solutions architect do to improve the application performance?

A company is running a multi-tier ecommerce web application In the AWS Cloud. The application runs on Amazon EC2 Instances with an Amazon RDS MySQL Mutt>AZ DB instance. Amazon RDS is configured with the latest generation instance with 2,000 GB of storage in an Amazon EBS General Purpose SSD (gp2) volume. The database performance impacts the application during periods of high demand.

After analyzing the logs in Amazon CloudWatch Logs, a database administrator finds that the application performance always degrades when the number of read and write IOPS is higher than 6.000

What should a solutions architect do to improve the application performance?
A . Replace the volume with a Magnetic volume
B . Increase the number of IOPS on the gp2 volume
C . Replace the volume with a Provisioned IOPS (PIOPS) volume.
D . Replace the 2,000 GB gp2 volume with two 1,000 GBgp2 volumes.

Answer: C