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.
Answer:
The byzantine empire struggled with low moral, corrupt leadership, bad politics, and excessive spending in the military
I hope that helps!
Its number 1: battle of san jacinto
The Missouri Compromise, which preserved the balance between Free and Slave states.
