It outlawed the discriminatory voting practices adopted in many southern states after the Civil War, including literacy tests as a prerequisite to voting. This “act to enforce the fifteenth amendment to the Constitution” was signed into law 95 years after the amendment was ratified.
The answer to the question that the sleep debt would then become the result of an insufficient sleep that happens on a chronic basis. Hope this is the right answer and would really then be of big help in this homework.