问题：

[单选题]Which of the description of the concept class diagram is incorrect?

AConcept class has no behaviorLaS答案窝(daanwo.com)-大学作业答案分享平台

BConceptual class diagrams must be defined based on system requirementsLaS答案窝(daanwo.com)-大学作业答案分享平台

CIf the candidate class does not need to maintain state only behavior, and there is no other associated state with it, we can eliminate this candidate classLaS答案窝(daanwo.com)-大学作业答案分享平台

DThe basic elements of the conceptual class diagram are objects, classes, links, associations (aggregation), inheritanceLaS答案窝(daanwo.com)-大学作业答案分享平台