Which of the following best summarizes this passage

Question

A) the Oregon trail was first used by Mormons fleeing religious persecution
B) the Oregon trail grew from small beginnings to a major migration route
C) the Oregon trail was made more accessible by missionaries who helped define the route
D) the Oregon trail was developed by the military to monitor between native America groups and settlers

Answer 1

B) the Oregon trail grew from small beginnings to a major migration route