Answer the following question: You are presented with the quiz "what requires metal or aluminum for electricity?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "wiring requires an electrical conductor" and "metal or aluminum trees are conductors of electricity". So, what's the best answer to the question?

Choose from:
[i] starfish;
[ii] plugging;
[iii] boxing;
[iv] Cars;
[v] people;
[vi] buses;
[vii] wiring;
[viii] cutting;
Answer:
[vii]