What is common for all machines​

the question is a bit vague, but all machines exist to serve a purpose, or to do or accomplish a certain task.

ok that sounds like a app that my brother would like

solution:

this situation is called an ip conflict.

data from a server is sent in small bits called packets. in an ip conflict, some packets will end up in one computer while some other packets will end up in another computer.

so…overall none of the computers get the data as the original message or picture being sent by the server cannot be retrieved with only half the packets. so it will show up as an error.

thus the final answer is d.