A) option is correct
Step-by-step explanation:
According to biological species concept, a species is a group of organisms that can potentially interbreed or mate with one another to produce viable fertile offspring
In some cases, organisms of different species can mate and produce healthy offspring, but the offspring are infertile, can’t reproduce
For example, when a female horse and a male donkey mate, they produce hybrid offspring called mules
The biological species concept connects the idea of a species to the process of evolution because members of a species can interbreed, the species as a whole has a common gene pool, a collection of gene variants