This should be B. The Archduke getting assassinated was a cause of World War I
Answer:
Their mission was to explore the unknown territory, establish trade with the Natives and affirm the sovereignty of the United States in the region. One of their goals was to find a waterway from the US to the Pacific Ocean.
Explanation: Hope this help !!! :) hehehhehe
The first amendment providing them freedom of press and freedom of speech.