The options of the question are, A) Catholic. B) Jewish. C) Protestant. D) Quaker.
The correct answer is C) Protestant.
Compared with “new” immigrants of the 1800s who tended to be Catholic or Jewish, most “old” immigrants were primarily Protestant.
Protestantism as a religious movement started in Northern Europe by the 16th century. Protestantism is a doctrine derived of the Christian principles. Among the Protestant religious we find the Methodist, the Lutherans, the Baptist, and Anglicans. The people that emigrated to America in these times were considered Protestants.