The correct option is A
Nativism is an ideology or political and social thought that defends or privileges those born in their own land and therefore rejects foreign migrants who come from abroad. Nativism is one of the essential components of right-wing populism, "nativism alludes to the idea that in the states should exclusively inhabit members of the native group (" the nation ") and that the non-native elements (" foreigners ") they are a fundamental threat to the homogenous nation-state. "