Earthquakes happen when

a : magma fills the chamber in a mountain
b : seismic waves are transferred from the ocean floor to ocean water
c : tectonic plates suddenly move past one another
d : rocks are broken down and transported from one place to another

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.