The correct answer is D.
In the Reconstruction Era, the 14th and 15th amendments to the US Constitution had been introduced in order to guarantee equal rights for all US citizens, preventing any form of discrimination in terms of race.
The states could not explicitly prevent any citizen from participating in the elections. Still, many Southern states, circumvented the newly established constitutional provisions by implementing new requirements such as literacy tests, payment of poll taxes, property restrictions, etc., that needed to be fulfilled in order to register to vote. These measures excluded mostly black citizens as many were poor and/or illiterate.
Moreover, the grandfather clauses were introduced. These were used so that those whose ancestors were able to vote before the Civil War, could continue doing it wihtout the need of proving that they met the extra requirements: the tests, the poll taxes, etc. These provisions enahnced even more the discrimination against black US citizens.
Answer: I would advise Augustus to not reduce the program.
Explanation: This would cause and uprising within his city and also compromise his trading with Eqypt and Spain. There could be a compromise whereby the grain could be less reduced, however, to shut it down would be a massive uprising.
The correct answer is option D " …in a changing world worthy institutions can be conserved only by adjusting them to the changing time". Calvin Coolidge was the 30th president of the United States, a republican lawyer that had a successful political life. His philosophy against active government was that institution should change with the government in order to stay active and productive to the society.
The correct answer is "political leaders", or other elitist groups who lead a revolution including the population which they dominate.
In total, the Black Death has killed about 450 million down to 350-370 million in the 14th century.
Hope that helped! :)