Answer:
The options are
A) there are too many pronghorn predators outside North America.
B) its temperature requirements are stringent and not met outside North America.
C) it is a relatively new species in evolutionary terms.
D) its nutritional requirements cannot be met outside this region.
E) it has never dispersed beyond this region.
The answer is E) it has never dispersed beyond this region.
The pronghorn antelope resides in temperature grassland biomes of North America. The reason pronghorn antelope are not found outside of North America is most likely that it has never dispersed beyond this region which could be due to the suitability of the environment to their survival.