When a population is geographically isolated from other populations of the same species, that isolated population can give rise to new species in a process known as

Allopatric speciation
Sympatric speciation
Cataclysmic speciation
Stabilizing speciation

Allopatric speciation

The correct answer is Allopatric speciation. Allopatric speciation occurs when a population becomes physically separated from other populations, typically due to a geographic barrier. This isolation can lead to genetic drift, natural selection, and other mechanisms that can cause the separated population to evolve independently over time. Eventually, the genetic differences and adaptations can become significant enough for the isolated population to be considered a new species.