How is sympatric speciation similar to allopatric speciation?



A. They both are mechanisms by which new species arise.


B.They both result in a subspecies evolving into a subpopulation.


C.They both involve joining two gene pools that were formerly separated.


D.They both involve speciation due to physical barriers.

I Think The Answer is A. but i'm not sure tell me if i am correct or not! They both are mechanisms by which new species arise.