Is one of your choices...Serbs? If so, I believe that is the answer.
Hope this helps!
I think it’s C because they need to know how big of a chance they have of losing it but don’t just take my answer wait for other people to answer as well just in case
Well it supplied many states with not only food but also gave the country alot of money due to trade value of the harvests. also it raised new methods of farming that some other country's payed to learn. I really hope this helps