Which of the following is not true of Christian art after the Edict of Milan?

1. The art included Christian symbols, such as the cross and the Good Shepard.
2. Mosaics freely covered church walls and ceilings.
3. Sculptures rarer than paintings.
4. Artists used bright colors and shading.

The statement which is not true of Christian art after the Edict of Milan is option 3. Sculptures rarer than paintings.