1. What did Justinian I desire most for the Roman Empire?

Justinian 1 wants to unify the Roman republic.

Explanation:

Served as Emperor Justinian 1 of the Holy Roman empire. Both as representative and king, Justinian 1 is known primarily for his service. Justinian 1 re-organised the Byzantine Dynasty's administration throughout his rule and introduced numerous measures to improve transparency and decrease corruption.

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation: