They are called instruments duh
it was part of a searies of the last ditch efforts to give the southern states with sufficient reassurance to forestall there secession during the final session of congress before the lincoln administraion taking office
Here is the answer of the given question above about the effects of isolationist policies. The effects of isolationist policies after the 1500s in East Asia still being felt in the region today since the <span>Ming Chinese had colonized the neighboring Annam, and built permanent commercial diaspora communities in Southeast Asia. The isolationist policy was instituted within the Ming court to distinguish China's trade policy.</span>
It is C and the French didn't help matters by not declaring what the boundries of the land actually were. Spain controlled Louisiana (New Orleans and the Mississippi going up for 100 miles). There was no other way that was better than the Mississippi to transport goods from Ohio Valley (for example).
C <<<<< ===== Answer.