Final answer:
The ipconfig command, without additional parameters, provides the physical or MAC address of the network interface card. The options given in the question do not directly provide the MAC address, and ipconfig/physical is not a valid command.
Step-by-step explanation:
The question is related to the use of ipconfig commands in Windows to manage network interface settings. Unfortunately, none of the options listed (a. ipconfig/release, b. ipconfig/renew, c. ipconfig/flushdns, and d. ipconfig/physical) directly provide the physical address, or MAC address, for the network interface card (NIC). The physical or MAC address can be found using the basic ipconfig command without any additional parameters, which will display network configuration details including the MAC address, labeled as 'Physical Address' in the output. Alternatively, you can use the command ipconfig /all to display detailed information about all the network interfaces, which also includes the MAC addresses.