After you show them a few photoshopped images of them in a sleeping bag and in the forest,
Through a variety of useful lenses. Sociological Paradigm, Level of Analysis, Focus. Structural Functionalism, Macro or mid, The way each part of society ...
The main reason why United States was involved in Vietnam is that the United States believed in the so called Domino effect: that if one country becomes communist, others might become communist too. So they got involved to stop the spread of communism (option a)