The panic of 1837 resulted in large measure from..

Athe policies of Martin Van Buren
Bthe costs associated with Indian removal
Ccomplex changes in the international economic system
Dthe policies of John Quincy Adams

Verified Answer :

The panic of 1837 resulted in large measure from "C. complex changes in the international economic system" since this was a time of great industrialization, which "changed the rules" of finance.