JFK was much younger than any other candidate running for president. The election was also very close between JFK and Nixon.
This was the first presidential election ever held on television.
Also computers were recently introduced.
Perestroika was the name given to the movement calling for reform of the communist party in the Soviet Union during the 1980s. The ultimate goal was to restructure the political and economic system within the Soviet Union so that it could be more effective and provide for the needs of the Soviet's citizens.
Charters and constitutions place limits on leaders powers
I would say D, four of the teeth were long and pointed. This description would indicate that it was a carnivorous animal. Carnivorous animals and herbivores have different teeth shapes/structure to them. Hopefully this helps.