What did Constantine do to help reunite the empire? He made Christianity the sole religion, to unite everyone.
He cut the size of the empire to make it more manageable.
He moved the capital to a better location for defense and trade.
He forced all Roman citizens to pledge allegiance to him.

Found this off of google, "Constantine now became the Western Roman emperor. He soon used his power to address the status of Christians, issuing the Edict of Milan in 313. This proclamation legalized Christianity and allowed for freedom of worship throughout the empire. ... In 324, Constantine defeated Licinius and took control of a reunited empire."

So, the answer to your question is D)He made Christianity the sole religion, to unite everyone.

Hope this helps have a great day and stay safe! :) :D :3

Also sorry I was late with the answer.

yes.

explanation:

because it let the japanese know who had the upper hand in the war.

according to romans 13: 1-7, 1st peter 2: 12-14, and 1 timothy 2: 1-4, christians as citizens have specific responsibilities to a nation that gives liberties to its people. christians are obliged to live as good citizens by submitting to the human government. honor, or respect, is due to men in the high governmental station. a christian should reflect such respect not to gain some favor but because it is god’s will. peter 2: 14 notes that the purpose of the human government is to promote peace and justice in society. to submit to human government, peter includes three elements; obedience, respect, and good deeds.