Respuesta :
Answer:
The most appropriate answer would be option B.
Species refers to the group of organisms which have similar features and which are able to interbreed to produce a viable and fertile offspring.
Reproductive isolation prevents interbreeding between members of different species. It includes a collection of behavioral, evolutionary, and physiological processes.
Different breeding seasons is a type of pre-zygotic reproductive isolation which prevents breeding between organisms of two species of butterflies.
Thus, the two groups of butterflies belong to different species.