How was the Western Schism different from Roman emperor Constantine I's
adoption of Christianity?

A. The Western Schism marked the start of peace in Europe, while
Constantine's adoption of Christianity marked the start of war.

B. The Western Schism delayed the rise of Islam in Europe, while
Constantine's adoption of Christianity hastened Islam's rise.

C. The Western Schism was a divisive event for European Christians,
while Constantine's adoption of Christianity was a unifying event.

D. The Western Schism encouraged the spread of Christianity in
Europe, while Constantine's adoption of Christianity limited it.

The Western Schism different from Roman emperor Constantine I's  adoption of Christianity is that the Western Schism was a divisive event for European Christians, while Constantine's adoption of Christianity was a unifying event.

Option C

Explanation:

Constantine was the first emperor to adopt Christianity by the issuing of the Eddict of Milan by its proclamation. Churches were built in Rome and throughout the Empire. The decision of Constantine of adoption of Christianity is often referred as the Triumph or peace of church.

It is also known by the name of Constantine shift. IT made him a great patron. He served as a saint in the Eastern Orthodox church as well as Christian monarch in Oriented Orthodox church.

The pope used to dwell in Viterbo, Orvieto, and Perugia, and known to dwell afterwards in Avignon. Later the Avignon Papacy, the popes arrived to Rome and it was trailed by the Western Schism.