Final answer:
To ensure that a specific user can read all queues in the parent and child business units, assign the Customer Service Representative security role.
Step-by-step explanation:
Answer:
To ensure that a specific user within the customer service business unit can read all queues within the parent and child business units, you should assign the **Customer Service Representative** security role to the user.
The Customer Service Representative role is designed to provide access to all queues within the parent and child business units of the customer service business unit.
By assigning this role, the user will have the necessary permissions to read all queues and handle customer service cases effectively.
It is important to note that the other security roles, such as Call Center Representative, Digital Response Specialist, and Escalation Specialist, may not have the necessary permissions to read all queues within the parent and child business units, as they are specific to their respective business units.