The first priority for a government is to enable its citizens to

The first priority for a government is to enable its citizens to live in peace and（）.
A、tranquility
B、altitude
C、complexity
D、attitude
【正确答案】：A
【题目解析】：本题考查名词词义辨析。and前后连接的成分具有一致性，peace表示和平，和谐。而altitude意为高度；complexity意为复杂性；attitude意为态度。所以tranquility表示安静，安宁，符合题意。句意：政府的首要任务是使公民生活得和平与安宁。