The correct response is: Christianity was outlawed until Emperor Constantine converted.
While this statement is somewhat simplified, it is true that early Christianity faced periods of persecution in the Roman Empire, and Emperor Constantine's conversion in the early 4th century led to more acceptance and eventual legalization of Christianity. The other statements are inaccurate:
- Pesach, or Passover, is a major Jewish holiday, not Christian.
- Judaism did not begin as a branch of Christianity; rather, Christianity emerged from Judaism.
- The Ketuvim is a section of the Hebrew Bible (Tanakh) and not part of the Christian Bible, although the Psalms from the Ketuvim are found in the Old Testament of the Christian Bible.