Unhygienic conditions, dehydration, dysentery
Answer:
D) values
Explanation:
values are the key practices, relationships, and organizations in a society.
The 1920s was a decade of lots social changes. The most obvious signals of change were the rise of a consumer-oriented economy and of mass entertainment, which helped to bring about a "revolution in morals and manners." Sexual mores, gender roles, hair styles, and dress all changed profoundly during the 1920s.
If you've been assigned a research paper on the Holy Wars, then an "Encyclopedia" would provide a factual base for additional research, since it is the most reliable.