I would say the answer is C. I learned this a long time ago. So hopefully this helps.
This supposed to be multiple choice? Only positive of the Arab spring in my opinion was the Tunisian revolution, they were able to, by popular uprising, oust the corrupt government of Zine El Abidine Ben Ali and have a peaceful and relatively stable transition of Democratic elections. No other country that experienced uprising can say the same.
Answer:
The Declaration's most important diplomatic effect was to allow for recognition of the United States by friendly foreign governments.
Answer:
independence and freedom.
The best answer among your choices is letter B. Turkey builds a dam, restricting the flow of the Euphrates in Syria. I hope you are satisfied with my answer and feel free to ask for more if you have more clarifications and questions