Question

Which commercial mode of transportation was not included in the transportation revolution of the 19th century?
a. Cars
B. boats
C. Planes
D.trains

Answer 1

D. That was before the 19th century. Also trains were being used less and less because of plane transportation and cars.

Answer 2

I want to say A. Cars but I'm not exactly sure. Anyway you know it's not boats and trains because they've (they've meaning the people) had that for a while,