Answer:
The best answer to the question: Which of the following is the best way to create a new species, would be: B: Isolate two different populations so they evolve separately.
Step-by-step explanation:
Although most people would say A is the best, because obviously when you combine different genes from different populations, would, of course, generate a new species, there is a much easier, and better way to do it, and it is natural. This concept is born from Darwin´s theory of Natural Selection. As such, when a group from a species is separated from the main one, or two of them, are separated, and conditions are changed, due to environment and isolation, the species will be forced to genetically alter themselves so that their new generations will adapt to the changes. Once these changes take effect, the new generation in the group will have different characteristics from the parent group, and will be termed a new species.