Which feature is NOT shared by the community in Chaco Canyon and the Mayan community in Tikal, Guatemala?
Select the best answer from the choices provided.
A.
OB.
The cultivation of maize using irrigation agriculture
The use of a hieroglyphic writing system
Large architecture with public spaces for religious rituals
C.
D.
Both communities abandoned the sites for unknown reasons

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.