单项选择题The ability to stack switches using cisco stackwise technology provides A number of important benefits to the customer, which of these is A benefit of cisco stackwise?()
A.allowscisco smart switches to be incorporated into the stack
B.allows multiple switches to be managed asA single device.
C.enables switches in multiple wring closets to provide failover for each other
D.eliminates the need to purchasesmartnet on individual switches in the stack