All regions possess all of the following except: a) absolute location
b) area
c) homogeneity
d) boundaries
e) relative location

C) homogeneity

Explanation:

All regions possess all of these characteristics, except for homogeneity. Homogeneity is a characteristic that describes a great similarity among the units that compose a region. Moreover, it implies a greater similarity between these internal units than between its units and those of other regions. The aspects analyzed in order to judge these similarities are usually physical (climatic zones, botanic areas, etc.) or social (historical or cultural regions).