A physical address (also called a MAC address) is a 12-digit hexadecimal number, usually written in 6 pairs separated by colons or hyphens.
Format: XX:XX:XX:XX:XX:XX, where each X is a hexadecimal digit (0–9, A–F).
Option 4 fits this format exactly: 6 pairs = 12 hex digits
A physical address (also called a MAC address) is a 12-digit hexadecimal number, usually written in 6 pairs separated by colons or hyphens.
Format: XX:XX:XX:XX:XX:XX, where each X is a hexadecimal digit (0–9, A–F).
Option 4 fits this format exactly: 6 pairs = 12 hex digits