Which of these powerful s is reserved for state governments

In the first half of the 20th century,literacy tests,poll taxes, and grandfather clauses were passed by the southern states in order to

Need on these last 2 questions on my social studies homework 5 and 6 then i’m done with the homework

Which of the following best describes a historical interpretation? o a. an unfair prejudice held by earlier cultures b. a source created in the ancient past o c. a conflict between ancient civilizations o d. an explanation for why a past event happened