Answer:
The windows are barred ... and there are rings and things in the walls
Explanation: The other options were incorrect.
Two devices would be imagery and sound
With the A. migration of people from fertile areas, knowledge of agriculture spread by diffusion.
When people migrate from a place, they move into other areas. When something diffuses, it spreads around.
Answer:
What do you want us to do? Write your report, this is for help on questions, not to do your entire assignment.