Answer:
C. His army and finances were weakened by plague
Explanation:
Although Justianian I, was characterized by its great military strategies and its ability to reconquer most of the territories that were part of the empire, all this came to an end with the emergence of a great plague that struck the soldiers and the population in general, it is believed that it was an outbreak of black plague, although it is not known for sure. This led to the loss of many of the reconquered territories.
