The answer is C, the War of 1812 (the others occurred before his term)
King Ezana also converted to Christianity. He was a devout Christian and Christianity became the major religion of the kingdom. Aksum was perfectly located to become a major center of trade. Merchants would travel from central Africa, Persia, India, and Egypt bringing their goods to Aksum to trade.
The last bubble is being cut off the screen, I don't know what the last option is.
Answer - Tsar Alexander ll
Reasoning - It wasn't untill after Alexander 1. Then came the second which he later ended up freeing serfs.
