Which statement BEST describes how the Transcontinental Railroad contributed to the closing of the frontier? A) Work on the railroad was physically difficult and made it hard to attack workers.
B) The new railroad made travel faster and easier resulting in accelerated westward expansion.
C) The railroad promoted the settlement of homogenous populations in the West and only a select few chose to relocate there.
D) The new railroad made travel between coasts easy promoting work in the West, while many people decided to live in the East.