Which three features of a version 5.5 vSphere Distributed Switch would address these challenges?

An organization is designing a new vSphere cluster to support a new product implementation.
The following challenges have been identified by the vSphere administration team:
The organization has the vSphere Enterprise License.
The network team needs to gather virtual machine network statistics over a long period of time.
The network team needs the ability to quickly assess virtual machine traffic in the event of an attack.
The network team has previously had problems implementing manual etherchannel configurations on their physical switches, resulting in production outages.
The new cluster’s initial size is 15 hosts.
The organization is willing to upgrade to vSphere Enterprise Plus licensing if it addresses these challenges.
Which three features of a version 5.5 vSphere Distributed Switch would address these challenges? (Choose three.)
A. LACP in Dynamic Mode
B. Port Mirroring
C. Network vMotion
D. Private VLANs
E. Network I/O Control