The Bedouin people may have developed strong clan relationships because: they had abundant resources.
the harsh desert climate required cooperation.
people lived packed together in densely populated cities.
None of the choices are correct.

My choice is: the harsh desert climate required cooperation

Explanation:

If you don't know, the Bedouin people lived in a very hostile environment. They were also nomadic as well. Therefore, we can cross off A since they didn't have abudant resources in the area. The third one doesn't work because they are nomads, not city dwellers (who would have been established in one areas). The last one doesn't work since the second one is true.

The second one is true because they developed strong ties from their cooperation. Safety was one of their biggest concerns, and living alone was bad since they couldn't live by themselves. By having close clan relationships, they had a better chance of survival in the dangerous environment.

these conditions long with a short growing season made farming difficult.

explanation:

the north has a climate of warm summers and snowy cold winters. the terrain is rocky, hilly, and not good for farming.

a.   it resulted in widespread unemployment.