What can the IT department do to mitigate this concern?

A company has deployed a CRM application on IBM Cloud, which records information about customer sales, as well as customer interaction and the channels they use. The marketing department wants to run complex reporting jobs against the data set, which is located in an IBM Cloud Databases for PostgreSQL instance, but the IT department is worried about the impact this might have on response times for other users.

What can the IT department do to mitigate this concern?
A . Implement a read-replica of the PostgreSQL database and make it the target for the reporting jobs
B . Export the relevant PostgreSQL tables into YAML files and use Data Engine to query them
C . Add a new member to the PostgreSQL instance cluster and mark it as reportmaster
D . Ensure that the PostgreSQL instance is in the closest MZR to the marketing department

Answer: A