Answer:
4. Standards are what guarantee that the different pieces of network are configured to communicate with one another
Explanation:
Networking standards ensure the interoperability of networking technologies by defining the rules of communication among networked devices. Networking standards exist to help ensure products of different vendors are able to work together in a network without risk of incompatibility
Hope it will help you...
The answer would be d they are both rare and valuable minerals
I believe the answer could be the first choice. I'm not quite sure, though