How can the administrator solve the problem?

A company has a wireless network that contains a cluster of four Aruba 7030 Mobility Controllers (MC) managed by a Mobility Master (MM) located in the data center. The company has Aps deployed that are nearing the capacity of the cluster. The administrator wants to increase AP capacity .

How can the administrator solve the problem?
A . Add a new controller to the Mobility Master.
B . Add a Virtual Mobility Controller to the existing cluster.
C . Add a 7030 controller to the existing cluster.
D . Add a 7220 controller to the existing cluster.

Answer: A