PART A: Which of the following identifies the central idea of the text? A. Lincoln’s tendency to change his opinion lost him the trust of a majority of the
American people.
B. While Lincoln passed the Emancipation Proclamation primarily to weaken the
South, his decision also created positive changes for African Americans.
C. Lincoln earned the trust and respect of the American people by sticking to his
beliefs and decisions regardless of the advice he received.
D. Lincoln was in strong support of passing the Emancipation Proclamation, as he
believed all men, regardless of race, were equal.

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