The byzantine empire lost Rome. Rome was claimed by the byzantines in the 6th century and in the 6th century was given to the papacy as the major seat and capitol of the papal state
The correct answer is A. Salt mines in the Sahara desert
Salt was extremely important at that time and was even used as currency often because it was expensive.
They had to walk the north west river it the longest river
The answers are B, C, and D