Shifani: I think it all _______ on where you are, but trains will definitely be the way of the future. Trains and buses combined, I think, because people like traveling long distances in the shortest amount of time possible. Trains are your solution for that. But for shorter journeys, obviously, connecting different train stations or connecting homes to the train stations, you are going to need buses. One can't really function without the other.
(A) counts
(B) depends
(C) tests
(D) matters