Seeing a homeless person pushing a cart filled with plastic bags of what most of us would consider junk is, tragically, a familiar sight in most cities. Disciplinary approaches to the problem of homelessness typically view it through narrow disciplinary lenses. Disciplinary experts set forth theoretical explanations of homelessness that tend to reflect their discipline’s narrow perspective on reality. For example, political science typically views homelessness as a public policy issue, and psychology views it primarily as a mental health issue. But interdisciplinarity would view homelessness

a. As a public policy issue.
b. As a mental health issue.
c. As a complex problem caused by multiple factors.

c. As a complex problem caused by multiple factors.