I would say a. sioux indian attacks on stagecoach lines.
D.
The red scare was all about getting communists out of the government and that was because of the fears that McCarthyism created about Russian spies.
It caused the rip tides like rise of Hitler or the reason Italy and Japan fell to facism and the US went ahead did their own treaties with the defeated.
Connecting past and present helps you see how humans have chosen to deal with conflict, which can lead to war, political debate, neighborhood riots, discrimination, etc. But also linking past and present helps us see how humans have solved any problems they have come across. Whether it be an economic issue, something that effects many people, or a personal issue.
