Final answer:
The question relates to various aspects prevalent on American campuses, including academic rigor, marijuana use, research initiatives, and political advocacy, with the latter being exemplified through events like the 2011 Occupy Wall Street movement.
Step-by-step explanation:
The question "What is prevalent on American campuses?" encompasses a broad range of activities and characteristics that can be associated with university life. While many aspects such as academic rigor, marijuana use, research initiatives, and internship opportunities exist on campus, the context provided suggests a focus on social and political advocacy as notable features of campus life, particularly in light of events like the Occupy Wall Street movement. This movement, which occurred in 2011, highlighted the role of American campuses as a platform for political engagement and social change. Students have the opportunity to engage in various aspects of campus life, and the prevalence of any of these characteristics can vary widely depending on the institution and the student body.