高中英语：as the quality of the city's air continues to give rise

高中英语：as the quality of the city's air continues to give rise to ( ), the residentAs the quality of the city's air continues to give rise to ________, the residents are encouraged to set off fewer fireworks. [ ]A. concerns B. compromise C. descriptions D. emergency 答案是 A 请你解释每一个选项.谢谢