An IPv6 Device with the Address of FC00::1 Connects to the Network

An IPv6 device with the address of FC00::1 connects to the network and captures the following data packet. What is function of the data packet?

A) There are multiple routers on the network segment. One router advertises router redirect messages to the IPv6 device.
B) The router on this network segment tests the working status of the IPv6 device
C) The IPv6 device implements self-loop tests
D) Another device on this network segment requests to resolve the Layer 2 address of the IPv6 device
E) The IPv6 device requests the address of the egress router
F) The IPv6 device checks address configuration of other devices on the network