Answer:
D. Portuguese
Explanation:
The Portuguese formed alliances with Kongo leaders in the 1400s and 1500s.
The Kongo had been unstable with factional and regional conflicts and accepted an alliance with the Portuguese so they could restore order.
The Kongo leaders gave the Portuguese some colonies, allowing them to trade and have access to the Kongo slave labor.
Medicare is a health insurance administrative by the goverment the purpose is to provide safty for retired workforces
Vaccination to prevent diseases. Vegan diets or whatever diets will not prevent them from having a better immune system to fight off such diseases
The fact that the leaders of the Argentina kidnapped, ignored, threatened, and deported them best describe what the military leaders in Argentina did to the people who are willing and has the guts to disagree to whatever their policies are.