This is true. The census determines how many house reps each state will receive and therefore has impact on the size of the electoral college for each state.
Populism was important because it had a non-class outlook.
Muslims, Magyars, and Vikings all invaded and broke the empire
The group which use literacy tests during the post Reconstruction years is the African American and the correct answer among the choices you give is letter D. I hope you are satisfied with my answer and feel free to ask for more if you have a question and clarifications