Why was constantine’s conversion to christianity significant?
a. his conversion signaled that christianity was the official religion of the empire.
b. his conversion marked the beginning of the persecution of other religions.
c. his conversion meant that christians would no longer be persecuted.
d. his conversion moved the roman empire toward pacifism.

The closest answer to that question is letter C. Although the other choices are quite true somehow, Constantine’s decision to stop persecution of the Christians was the most significant. Because of his conversion, he stopped Christian persecutions immediately. This led to and became the turning point of Christianity. Due to his conversion, he was able to legalized Christian worship in a form of a decree which we call the Edict of Milan. Constantine became a faithful follower of Christianity and was considered an influential individual in Christianity.     

Because he proposed that all the treaties should be made through the league of nations.