Answer:
The answer is: letter A, They relied on trade with other cultures.
Explanation:
Byzantine Empire and the Roman Empire are often said to have <em>similar roots. </em>One of these is that <u>they both relied on trading with other cultures. </u>
The Byzantine Empire's expansion is mainly because of <em>long-distance trading.</em> Common things that were traded were<em> wine, wheat, olive oil, honey and other goods of antiquity. </em>The center for trade and culture was in <u>"Constantinople."</u>
The Roman Empire, on the other hand, <em>relied on trading in order to raise their lifestyles.</em> Those who could trade luxury goods were seen to have a higher status in the society. In order to make the trade successful, they <u>deeply protected the routes for trading (including the waterways).</u>
Thus, this explains the answer.