Final answer:
The Know-Nothings believed that America should be run by native-born Americans, specifically white male protestants.
Step-by-step explanation:
The correct answer is D) The Know-Nothings. The Know-Nothing Party, also known as the American Party, was a political party in the mid-19th century that emerged as a nativist and anti-immigrant movement. They believed that America should be run by native-born Americans, specifically white male protestants.