To complete the sentence correctly, you need to understand the historical context of Christian art.
1. By AD 1400, **Rome** became a center for Christian art.
- During the Renaissance period, Rome emerged as a major center for Christian art due to the patronage of the Catholic Church and the artistic developments of the time.
2. After the Protestant Reformation began, the Catholic Church directed artists to **create** specifically promote the values of the **Catholic** faith.
- In response to the Protestant Reformation's challenges, the Catholic Church encouraged artists to create art that emphasized Catholic doctrine and countered the Protestant criticisms.
By understanding these historical developments, Ben can accurately complete the sentence describing an important phase in the history of Christian art.