D - Mongolia. This is because it is a landlocked country which means it is only surrounded by countries, not oceans. Therefore, it would not have access to big oceans/seas.
A is the answer will you mark as brainliest
The Bantu migrations are most closely associated with the spreading of cultures in Africa
The bantu migrations refer to the Original African People which located in western Africa which migrated across the Current African continent, spreading their cultures along the way.