Which three statements correctly describe switching? (Choose three.)

A.
A Layer 2 switch operates up to the data link layer of the OSI network model.

B.
A Layer 3 switch operates up to the transport layer of the OSI network model.

C.
A dual-layer switch operates at the application layer of the OSI network model.

D.
A multilayer switch operates at all layers of the OSI network model.

E.
A Layer 2 switch operates up to the physical layer of the OSI network model.