Snow and Anderson's Study of Homeless Street People for "Salvaging

Snow and Anderson's study of homeless street people for "Salvaging the Self" was done by

A) assigning their graduate students to do ethnographic fieldwork as part of their sociological training.
B) spending time with homeless street people over a two-year period.
C) conducting a survey of people who work with the homeless, including those who live on the street.
D) reading all of the literature available on homelessness and synthesizing what they read.