Which business requirement should you identify?

You need to identify which business requirement will be met by implementing the planned hardware load balancer.
Which business requirement should you identify?
A. Minimize the hardware costs required for a load balancing solution.
B. Minimize the software costs required for a load balancing solution.
C. Minimize user interruptions if a service fails on a Client Access server.
D. Minimize user interruptions if a service fails on a Mailbox server.