What change in the on-premises architecture should you make?

For this question, refer to the Dress4Win case study. You want to ensure that your on-premises architecture meets business requirements before you migrate your solution.

What change in the on-premises architecture should you make?
A . Replace RabbitMQ with Google Pub/Sub.
B . Downgrade MySQL to v5.7, which is supported by Cloud SQL for MySQ
D . Resize compute resources to match predefined Compute Engine machine types.
E . Containerize the micro services and host them in Google Kubernetes Engine.

Answer: C