Answer:
1) In january 1973, the United States and North Vietnam concluded the last peace treaty, ending open hostilities between the two nations. War between North and South Vietnam continued, however, until April 30, 1969.
2) Nixon visited China to gain more leverage over the relationship with the Soviet Union. The normalization of ties culminates in 1979, when the U.S. established full diplomatic relations with the PVR.
Explanation:
I'm going to have to say C, the requirements that a losing army must obey.
Tell me if I'm wrong, I had to look into this.
That would depend on the time period. There was conflict between India and Britain, ranging from 1700 to 1798, so if you could specify a time period, I could help more.
Generally speaking, "assembly line jobs" did not represent an obstacle during this time, since this in fact increased productivity through the "specialization of labor".