Why did Christianity develop as its own religion?

A. Christians disagreed with the Hebrew Bible
B. Jesus denounced Jewish leaders and their teachings
C. Some Jews believed in Jesus as the Messiah while others did not
D. The Romans wanted to start a new belief system to exclude Jews

C. Some Jews believed in Jesus as the Messiah while others did not

The development of Christianity as its own separate religion can be attributed to the fact that some Jews began to believe in Jesus as the Messiah, while others did not. This caused a split within the Jewish community, with those who accepted Jesus as the Messiah forming their own distinct religious identity centered around his teachings and teachings. This eventually led to the development of Christianity as a separate religion from Judaism.