Answer:
1. After Reconstruction, many southern states enacted a poll tax, which was used to Ensure poor African Americans could not afford to vote.
2.Literacy tests, requiring voters to pass in order to vote. Because African Americans were exploited economically and denied an education, these restrictions disqualified many of them as voters.
The correct answer is option C: someone diagnosed with smallpox.
The person that would have been most grateful for the work of 19th-century scientist Edward Jenner, would be someone diagnosed with smallpox because Jenner was who discovered the first vaccine against the smallpox virus. Moreover, this disease that was widely spread in the 18th century and killed many people.
Both Leaders challenged the European Union.
And they both studied chemistry at universities.
Please correct me if I'm wrong!! :)
WHO facilitates cooperation among countries on shared concerns and problems to provide public health solutions. Over the years, many countries have made significant progress in achieving common health goals through cooperation with other countries.
