Why was there such a strong anti-catholic sentiment in america during the 1800s?

a. catholics were believed to be uneducated and ill-mannered.
b. americans did not agree with the teachings of the latest pope.
c. catholics were taking all the high-paying industrial jobs from others.
d. americans wanted to maintain a white, protestant nation.

I believe the answer is: d. Americans wanted to maintain a white, Protestant nation.

England was among the largest Protestant nation in the world. Due to the colonization era, many of colonits in united states adopted this religion to maintain good relationship with the british people.

At that time, Rethoric such as catholics church sells rights to confess sins and catholic church did not care about the poor were spread to maintain the position of the protestants.

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