The main way in which these two were related is that the Nullification Crisis stemmed from federal tariffs, which South Carolina deemed unfair and unconstitutional because they limited trade.
The immediate result of the Vietnam War was that the communists won and Vietnam was united as one country, run by the communists. In Vietnam, this led to a number of things. Notably, it led to the flight of over 1 million Vietnamese who wanted to escape the country.
Answer:
c is the answer for this problem