Hey,
Inherency Theory is characterized by the fact that fundamental disposition of individuals is towards power and dominance, violence is only an extreme but normal expression of this tedency,and also that the choice of violence is a question of tactical consconsideration.
Contingent Theory states the fact that Individuals are basically pacific. Under specific conditions the pacific impulses may be diverted and the major problem for conflict theory is to explain the frequency of violence.
Interactionist Theory states that the Individuals are often pacific, but violence as such is not aberrant.
Conflict is one, but not only the response to unmet needs.
Hope this helps.
Good luck.