Aşağıdaki cümlelerden hangisi "Gelecekteki ulaşım" konusunu anlatan bir paragrafın giriş cümlesi olarak en uygunudur?
A) In the past, people traveled by horse and carriage.
B) Let's discuss some interesting predictions about how we might travel in the future.
C) Flying cars are already available in some countries today.
D) Public transportation is important for cities.
E) I believe that trains are the best way to travel.