Depends on what the picture is. I would guess the most logical one is D. Think about the Amazon Rain forest.
2000 was at its all-time high
A Bedouin is a member of the Arabic community that does not live a settled live, but instead has a nomadic lifestyle, traveling from one place to another. Bedouins live in Northern Africa and Middle east, mostly in Sudan, but also in many other countries, such as Algeria and Saudi Arabia.
I think your answer would be A.