In what way are converged network adapters an integral element of a unified fabric infrastructure?

In what way are converged network adapters an integral element of a unified fabric infrastructure?

A.
They simultaneously send TCP/IP communications over multiple 1-Gbps connections.

B.
They support the 4-Gbps Fibre Channel connections and use a PCIe interface to connect to the server.

C.
They simultaneously send either FCoE or TCP/IP communications over a single 10-Gbps connection.

D.
They use multiple integrated ASICs to separately perform 10-Gb Ethernet and Fibre Channel functions.