Which of the Following Statements Is True

Multiple Choice

Which of the following statements is true?

A) Anthropologists have been unable to identify any tribes or societies that do not engage in intergroup conflict.
B) Fossil evidence indicates ancient human groups (tribes) cooperated with each other;conflict between groups was rare.
C) Conflict with outgroups is usually socially condemned,but considered a necessary evil.
D) The Yanomano were a uniquely violent culture.
E) Intergroup conflict,although not a human universal,is common across societies and eras.