In 1821, William Becknell led a wagon train from Independence, Missouri, to Santa Fe, New Mexico. The wagon train led by William Becknell then established a <span> route for international trade with Mexico.</span>
I would say D. All of the answers are correct.
Answer: C
Explanation:
I do believe it's c if not I'm sorry
The oath was administered by Robert R. Livingston.
Hope this helps.