In the football round robin, if the red team wins the yellow team by 4:1, the yellow team wins the blue team by 1:0, and the blue team wins the red team by 1:0, then the net winning goals of the red team, the yellow team and the blue team are () A. 2，-2，0B. 4，2，1C. 3，-2，0D. 4，-2，1

In the football round robin, if the red team wins the yellow team by 4:1, the yellow team wins the blue team by 1:0, and the blue team wins the red team by 1:0, then the net winning goals of the red team, the yellow team and the blue team are () A. 2，-2，0B. 4，2，1C. 3，-2，0D. 4，-2，1

According to the meaning of the title, the red team has four goals together and two goals lost, and the number of goal difference is 4 + (- 2) = 2; the yellow team has two goals together and four goals lost, and the number of goal difference is 2 + (- 4) = - 2; the blue team has one goal together and one goal lost, and the number of goal difference is 1 + (- 1) = 0