Answer:
A piedmont is an area at the base of a mountain or mountain range. But i cant see the list so hope this is on there.
Explanation:
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.
Because it is more than 5,000 years old.
