25 points and brainliest) which of the following identifies the central idea of the text, regarding the harlem renaissance? question 4 options: a. it encouraged african americans to leave the south to pursue work in harlem, where african americans were considered equals. b. it worked to change white citizens’ perceptions of african americans as primarily laborers c. it provided african americans an opportunity to create a new identity by using art to express their feelings and experiences. d. it reminded white citizens that african americans continued to suffer unjust treatment because of their race.

Read this excerpt from "edward jenner and the history of smallpox and vaccination.” smallpox was introduced to europe sometime between the fifth and seventh centuries and was frequently epidemic during the middle ages. the disease greatly affected the development of western civilization. the first stages of the decline of the roman empire (ad 108) coincided with a large-scale epidemic: the plague of antonine, which accounted for the deaths of almost 7 million people. the arab expansion, the crusades, and the discovery of the west indies all contributed to the spread of the disease. unknown in the new world, smallpox was introduced by the spanish and portuguese conquistadors. the disease decimated the local population and was instrumental in the fall of the empires of the aztecs and the incas. similarly, on the eastern coast of north america, the disease was introduced by the early settlers and led to a decline in the native population. before it reached the new world, smallpox played a role in