What is a valid reason for an administrator to set the MC to master-local mode?

A Mobility Controller (MC) runs ArubaOS 8.

What is a valid reason for an administrator to set the MC to master-local mode?
A . The company already has a partially hierarchical deployment based on the 6.x code and wants to keep the current architecture.
B . The company needs to manage third-party network infrastructure devices with the use of the master controller interface.
C . The company wants a deployment architecture that allows administrators to configure all MC settings from a single location.
D . The company requires a centralized licensing architecture that provides global license pools.

Answer: A