We worked harder and we helped each other out and we all came together as one
Let us choose Extra study. Knowing that opportunity cost is related to the opportunities lost by choosing one specific course of events than others. By choosing an extra study and spend hours studying something, my opportunity cost will be the school sports practice hours that could be spent in this time. Another opportunity cost would be the social interaction, in a club, for example, lost because of the extra study decision.
The correct answer is: C) movement to the suburbs.
One of the most important post-war migrations was the one that moved the middle classes to the suburbs. By 1970, suburbs population was larger than central cities'. These areas became mostly inhabited by adults between the ages of 25 and 35 and their children.
Basically the Europeans invaded and colonized the areas of Africa during the Scramble of Africa.
A is the answer. The first Bull Run was early in the war, and much of the North was convinced it would end quickly-people had even brought out chairs to watch the firefight. However, their visions were soon shattered.
B is wrong: the South had plenty of troops, and even if it did not, Bull Run was no indication.
C is wrong: Bull Run was a failure for the North, so it would not indicate to Lincoln that the North was overstocked on troops.
Similarly, D is wrong: the war actually would take longer.
