The transcontinental railroad helped connect the east and west side of the U.S. It also made it easier to move westward.
<span>The answer is C. It limited social mobility.
The caste system of ancient India was a system in which people could not achieve a higher caste. For example, if a man was born in a poor family, he would never be able to get into a higher caste no matter how much he tries. It was a very rigid system.</span>
The immigration Act of 1924 or the Johnson-Reed Act i believe
