All of the Following Have Been Suggested as a Cause

All of the following have been suggested as a cause of Yanamamo warfare except:

A) Attempts of individuals from one village to capture women from other villages.
B) An indirect way of controlling population.
C) High levels of female infanticide and scarcity of females.
D) Competition over scarce resources as a result of Western encounters.
E) An expression of inability of primitive peoples to control their aggressive impulses.