Answer:
it is not the 3 or 4, so I think its 1 or 4
Option 3: The exact cause of the Tuscarora
In the north of IRAN we find (800 km long and 320 km wide) the Dasht-e-Kavir Desert, being a very arid region with temperatures up to 50 degrees Celsius, in the west the desert borders a salt lake called Darya -ye Namak which is formed of large plates of salt because they evaporate because of the high temperatures of the desert
I hope I've helped
Wave of invader swept across Western Europe (Vikings, Franks, Goths, and Huns) trade slowed down to a trickle (people became more isolated) towns became empty, and classic learning just stopped.