What was the ultimate impact of justinian’s constant wars to rebuild the byzantine empire? re-institution of rome as the empire's capital army spread thin and open to attack sustained occupation of the old western roman provinces growth and stability in the byzantine empire

The correct answer for the ultimate impact of Justianian's constant wars to rebuild the Byzantine Empire was Growth and stability in the Byzantine Empire, which survived for more than 1000 years.

Re-institution of Rome as the empire's capital is wrong because the capital was moved to Byzantium.

Army spread thin and open to attack, this is wrong because Justinian's tactics were so successful that they even manage to get some of Italy and Africa territory.

Sustained occupation of the old Western Roman provinces, this option is wrong as Rome provinces were lost with Roman empire fall.