B. The ottomans promoted free trade on the silk road
Veto Power and by passing amendments to the constitution .
The information that Zhang Qian brought back encouraged Han Wudi to destroy the Xiongnu and lay the foundations for the "<span>c. Silk roads," since it was now known that these would greatly expand the Chinese economy. </span>
Lewis and clark were put on the great expedition to search to the far west to look for more land as the united colonies grew, on their way the stop by many american indians. But, Lewis and clark were not the ones to drive them out of their land, it was when the colonists came to claim land from them.
<em>Sorry if this had nothing to do with this question, i just read about the great expedition awhile ago and i remember lewis and clark trying to be friends with indians -Cvest</em>