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.
The French navy assisted the US forces in the Battle of Yorktown
I believe they received food from soup kitchens and bread lines, they offered free or low-cost food for people.
Answer:
the order would be B, D, C, then A
