Conventional wisdom holds that the development of separate species happens quickly, most often when populations become separated by a geographical barrier." This is called ________ speciation. "Even if these groups meet again and manage to mate before diverging too far from one another, their offspring will be unfit and die out." This is described as hybrid ________.A) sympatric; viabilityB) allopatric; fertilityC) sympatric; breakdownD) allopatric; breakdown