Answer:
I found this online so I hope it can help you but don't copy word for word because it's not my words and I don't know if it's accurate
"The Corps of Discovery were excellent goodwill ambassadors, befriending over 40 tribes while engaging only one in hostilities. The Corps carried a large supply of peace medals, beads, and certificates to help them accomplish this goal. They also recorded valuable information about the tribes and their cultures."
Also I have attached the article link so you can see for yourself
http://corpsofdiscoverydbq.weebly.com/
Explanation:
Oregon Territory was originally claimed by Great Britain, who, under their claim, established successful trade outposts such as the Hudson Bay Company, etc. However, during the course of westward expansion(manifest destiny, whatever), after Lewis and Clark's exploration of Oregon Territory, many Americans settled the Oregon territory, including missionaries and fur trappers, who of course set up shop. In the end, the American claim was stronger, as you can see, Oregon isnt influenced by Britain like parts of Canada are now.
The answer is option D "a document made by someone who actually saw an event." A primary source would be like a witness during a event. They can give reliable information on what happened during that event. Main primary sources are: documents, pictures or photographs, and objects that can explain what happened during a event.
Hope this helps!
The decline of the Ottoman Empire allowed Austria -Hungary to spread it's influence in Bosnia which upset the balance between the Great Powers in that region. if the Ottoman Empire was stronger Bosnia would have stayed firmly under ottoman control
