B. Appeasement
This is because hitler wanted to conquer territories in Europe and the Allies didnt want to risk another war
Reasons why a teenager might join a gang in the '60's is because, they want to belong. A passage right from teenage to adulthood. Desire to share interests, even if those interests are viewed negatively. To feel popular, or even if the group is not viewed as not popular. Needs to separate and differentiate from parents. Rebellion, revolt from adults. Low self esteem.
A because that the line of where the prime meridian on a map would be.
Bamboo plants
Sun dried mud
Earthbags