John dear I think have a nice day
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the "rise in opposition over slavery," since this was what separated the Republicans from the Whigs. </span></span>
One of the reasons why there was such a strong anti-catholic sentiment in America during the 1800s, was because many Protestants thought they were stealing jobs and disobeying the law.
The end of the Civil War (1865) to about World War 1 (1918)
Hope this helps :)