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.
B) Cuba's economy weakened
Answer:
The Tet Offensive, a surprise attack launched by North Vietnam in the pre-dawn hours of Jan. 31, 1968, was a major turning point in the war
Explanation:
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