During the rule of Emperor Justinian, the Corpus juris civilis was important because it

Responses
A held that the empire’s monarchs must follow all laws.held that the empire’s monarchs must follow all laws.
B made Christianity the official religion of the empire.made Christianity the official religion of the empire.
C allowed Byzantine citizens to know what law governed them.allowed Byzantine citizens to know what law governed them.
D forbade the practice of Islam in the Eastern Roman Empire.forbade the practice of Islam in the Eastern Roman Empire.

C allowed Byzantine citizens to know what law governed them.

C allowed Byzantine citizens to know what law governed them.

The correct answer is C. The Corpus juris civilis was important during the rule of Emperor Justinian because it allowed Byzantine citizens to know what law governed them.

To arrive at this answer, we can analyze the options provided and eliminate ones that are incorrect:

Option A is not correct because the Corpus juris civilis did not specifically address the behavior or obligations of the empire's monarchs. It primarily focused on compiling and organizing existing laws.

Option B is not correct because the Corpus juris civilis did not have any provisions related to making Christianity the official religion of the empire. That decision was made by Emperor Constantine in the 4th century.

Option D is not correct because the Corpus juris civilis did not address the practice of Islam. It was primarily concerned with Roman law and Roman citizens.

Option C is the correct answer because the Corpus juris civilis, also known as Justinian's Code, was a comprehensive compilation of Roman laws. It organized and clarified existing laws to make them more accessible to the people. This allowed Byzantine citizens to know what laws governed them and provided a basis for the legal system of the Byzantine Empire.

Therefore, the Corpus juris civilis was important during the rule of Emperor Justinian because it allowed Byzantine citizens to know what law governed them.