Answer:
C) It greatly increased the size and importance of the national government.
Random attacks by Indian tribes. The frontier had swamps-to-mountainness terrain. Seeds didn't work in all parts of America, some lived healthy in one area while the same seed could die somewhere else there.
The answer would be
C) Conquered people with many of its citizens exiled to faraway captivity.
True but it could be primary or secondary due to what it is.
The answer is B. The conflict marked the end of Spain's reigh ad a major imperial power.