A species originates:

Correct option is C

Explanation:
Speciation—the formation of a new species—typically requires both natural selection and reproductive isolation. Natural selection drives adaptations in populations to different environments or ecological niches. However, for a new species to form, reproductive isolation is also necessary so that gene flow between diverging populations stops, allowing genetic differences to accumulate over time.
Information Booster:
Natural selection alone can lead to divergence, but without reproductive isolation, the gene pools would continue mixing, preventing speciation. Reproductive isolation can be pre-zygotic (barriers before fertilization, like different mating calls or behaviors) or post-zygotic (offspring are sterile or inviable). Together, these mechanisms ensure that populations evolve independently, eventually forming new species.