The united states was still a colonies that undercontroll by Britain(England) so Britain forced the united states to fight for them. Therefore, the answer is B.
Individuals can find people of need and work towards providing services to them; inviting others to work with them and inspiring them to likewise work for the improvement of social conditions.
Ps. please note that Mother Theresa was actually a controversial figure and many claim that she did not help the way she claimed to.
I believe the answer is C: the United States and the Soviet Union formed a new alliance.
What a country must have in order for it to specialize its production is an INTERNATIONAL DIVISION OF LABOR. The answer to this would be option A. Once labor is being divided internationally, the results would also be positive and very productive since the tasks being done are simultaneously done. Hope this helps.