Around the same time as the roman empire converted to christianity, what changes were occuring in the kingdom of aksum?

a) trade decreased due to the rise of the roman empire.
b) rulers of askum converted to islam due to merchants and missionaries.
c) rulers of askum converted to christianity due to merchants and missionaries.
d) the kingdom thrived as a dependent of the roman empire.

Correct

C. Rulers of Askum converted to Christianity due to merchants and missionaries.

Under Emperor Ezana, Aksum adopted Christianity, which gave rise to the current Ethiopian Tewahedo Orthodox Church and the Orthodox Church of Tewahdo of Eritrea. Another achievement during this period was his own alphabet, the Ge'ez alphabet.

the answer is states.

the exclusive possession or control of the supply or trade in a commodity or service.