C The U.S. Constitution was influenced by the Iroquois democratic system.
Explanation:
According to the text, the relationship between the Iroquois democratic system and the United States Constitution was that the US Constitution was largely based off the Iroquois Confederacy.
The United States Senate recognized this in 1988 as it stated that 5ye merging of the thirteen colonies into a Republic was influenced by the Iroquois Confederacy along with many other principles.
Justinian I
Explanation:
Undertaking a massive overhaul of construction projects during his 40-year rule, Justinian is likely best known for commissioning what would be the final iteration of the Hagia Sophia among a litany of other churches and structures adding to the fame of the Byzantine empire, as well as being a great patron for Byzantine cultural art in the form of mosaics. He was also responsible for historic military campaigns to reclaim lands previously lost to Germanic invaders, meeting with success as far as Italy and re-establishing Ravenna as a capital.