The Santa Fe Trail A. Was a disputed area between the Unites States and Mexico B. Began as a route for bringing trade goods from western edge of the United States to the territory of New Mexico. C. Was used be emigrants to get to Oregon. D. Was part of the Bear Flag Republic

the answer is B... I think

Explanation:

From 1821 until 1846, the Santa Fe Trail was a two-way international commercial highway used by both Mexican and American traders. Then, in 1846, the Mexican-American War began, and a few months later, America's Army of the West followed the Santa Fe Trail westward to successfully invaded New Mexico.

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.