问题:
[单选题]In each sector, employers will maximize profits by demanding labor up to the point where the value produced by an additional hour equals the () of employing a worker for that hour.Qw8答案窝(daanwo.com)-大学生作业答案及考资分享平台
Aaverage profitQw8答案窝(daanwo.com)-大学生作业答案及考资分享平台
Bmarginal costQw8答案窝(daanwo.com)-大学生作业答案及考资分享平台
Ctotal costQw8答案窝(daanwo.com)-大学生作业答案及考资分享平台
Dprofit