I believe it's D. They spread industrial technologies and products across wide areas.
C. It was a philosophical text by Laozi to help people live in balance and simplicity.
Answer:
Benjamin Harrison | The White House.
that would be a tramway, because it wouldn't be a head track, or coal train depending on the type of mine, the cars are typically called tramways just to generalize them, because they were in used in all sorts of different types of mines.
