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 addres