I believe that the answe is c
Answer- b
Answer:
Mountains isolated many groups that migrated to the region. Dense forest served as a barrier to migration across the region. Vast plains facilitated the migration of people across the region.
Explanation:
CORRECT
<span>I think hes trying to create a way to store energy</span>
Sweetie you're gonna need to show the options too. maybe send a pic of it, or just simply type it up
