Jarod is conducting research on the homeless. for six weeks, he has lived among the homeless "24/7," sleeping on the street or at a shelter, and engaging in the same activities as the population he is studying. by doing so, jarod has been able to gather a broad understanding of the homeless, their needs, and characteristics. in view of this, jarod is using as a method of gathering data. a. secondary analysis b. participant observation c. content analysis d. representative sampling