In your opinion, which was more important to this growth:  the National Road, the railroads, or the canal system?why

In your opinion, which was more important to this growth:  the National Road, the railroads, or the canal system?why

Impact of Industrialization:  During this time period, we saw a tremendous growth in industry and the growth of the nation.  In your opinion, which was more important to this growth:  the National Road, the railroads, or the canal system?why: