Given a new implementation, which of the following procedures should be used to determine a default gateway’s IP address?

A.
The address will always end in 255.

B.
The address will always be the first interface’s IP address.

C.
The address will always be the network with a 1 as the final octet.

D.
It is important to consult with the network administrator prior to making assumptions regarding the default gateway’s IP address.