A customer needs to support $400$ APs using an Aruba VMC solution involving two Mobility Controllers that will be virtualized. The VMC$$s will be centrally managed and licensed using an Aruba Mobility Master $($MM$).$ What would be an appropriate and cost$-$effective license purchase for this VMC solution for the APs to connect to the VMCs$?$a$.$tOne MM$-500$ license packsb.tTwo MC$-$VA$-250$ license packsc.tOne MC$-$VA$-500$ license packsd.tTwo MC$-$VA$-1$k license packs