Which groups objected to immigration, responded to the red scare, and believed white Protestants were better than others?

A: Nativists and the ku klux klan. B: Labor unions and Jews. C: Communists and socialists. D: African Americans and Catholics.

The answer you are looking for is: Nativists and the Ku Klux Klan

Option A.

Explanation:

Nativists and the Ku Klux Klan, is the right answer.

The Ku Klux Klan is an American white supremacist hate society. The existence of this group or society can be observed in three different periods in American History. Each has promoted extremist reactionary situations such as white nationalism, anti-immigration and-notably in following repetitions - Nordicism and anti-Catholicism. The Ku Klux Klan spread into nearly all southern state by 1870 and became a means for white southern opposition to the Reconstruction-era policies of the Republican Party, aimed at building political and economic fairness for blacks.