Delmos Jones' Study of Voluntary Organizations Among an African-American Community

Delmos Jones' study of voluntary organizations among an African-American community in the United States showed him that:

A) no one worked consistently for the organizations unless they were paid for their work.
B) voluntary organizations are highly successful when founded by minority leaders.
C) his work as a native anthropologist was at the center of the success the African-American community experienced in cultural identity.
D) there was considerable dissent between the leadership of the organizations and the members.
E) native anthropology has little or no value in the discipline.