Answer:
The A r y a n culture comes from between the Caspian and Black Seas.
Explanation:
A is not correct because north of the Nile River lies the Meditteranean Sea, so not just the A r y a n but no culture has developed there as it is water surface.
B is correct because all of the evidence suggests that the A r y a n culture started off in the steppe between the Caspian and Black Seas, and later spread out toward the west (Europe), east (Central Asia), and southeast (Iran and South Asia).
C is not correct because east of Asia lies the Pacific Ocean, which again is not really possible for any culture to develop in water.
D is not correct because to the south of Egypt developed the K u s h i t e and Nubian cultures, not the A r y a n one.