Which of the following is a standard IEEE 1394 transmission speed?

In December of 1995, the IEEE released an official Firewire specification, dubbed IEEE 1394. This specification, sometimes referred to as ‘Firewire 400’, describes a hot-swappable peripheral interface with transfer speeds of 100 Mbps, 200 Mbps, and 400 Mbps.

So Answer B is corretc