问题：
[单选题]For a big country, import tariffs on a good （） the relative world price of that good (and increase the relative world price of other goods) by increasing the relative supply of that good and decreasing the relative demand of that good.YKk答案窝(daanwo.com)-大学生作业答案及考资分享平台
AdecreasesYKk答案窝(daanwo.com)-大学生作业答案及考资分享平台
BincreasesYKk答案窝(daanwo.com)-大学生作业答案及考资分享平台
Cdoes not changeYKk答案窝(daanwo.com)-大学生作业答案及考资分享平台
Dhave no effect on
