Because Christians in the early Roman Empire were often persecuted for their beliefs, they often worshipped in private homes and in

A) temples.

B) catacombs.

Eliminate

C) cathedrals.

D) bath houses.

They worshipped in private homes and in catacombs most of the time. Some worshipped in other secretive places, but the majority stuck to those main two.

The answer is; B) catacombs.

catacombs are underground cemetery that commonly exist in European empires.

Due to the persecution, the Christians in early Roman empire need to find a place that can avoid detection from the roman soldiers. Catacombs were seen as the best options since the roman soldiers rarely conducted patrol on this area