单选题 Could you tell me how many offices our company has ______?
【正确答案】 A
【答案解析】选项A正确，“nationwide”的意思是全国范围内。选项B错误，“national”是形容词，后面必须加名词。选项C错误，“nationalize”是动词。选项D错误，“nationality”是名词。