Which Provides the Most General and Correct Description of the Idea

Multiple Choice

Which provides the most general and correct description of the idea of a reproductive barrier?

A) any feature (of geography, behavior, or morphology) that keeps one species from mating with another
B) a biological difference between two species that prevents them from successfully interbreeding
C) a geographic barrier that separates two species and prevents gene flow between them
D) a difference in behavior that keeps two species from interbreeding