问题详情

Marlon is bowling in a tournament and has the highest average after 5 games, with scores of 210, 225, 254,231, and 280. In order to maintain this exact average,what must be Marlon’s score for his 6th game？
A.200
B.210
C.231
D.240
E.245请帮忙给出正确答案和分析，谢谢！