The answer is A. Vasco Da Gama traveled from Portugal, to Africa, and finally to India.
Answer B. made the most impact that still reflects today's government
The Americans got involved in the Vietnam War because they did not want another Communist party to hold Vietnam as its captive. Vietnam along with other South East Asian countries have undergone communist rule from China and France, Americans did not want to see that happening again, that's why they aided or supported the Vietnamese from the war that they were waging against communist countries.
