Which of these is a valid definition of Master Data?以下哪个选项是正确的主数据定义?:()?
（A）Data that if missing or incorrect will cause transactions and processes to fail数据如果丢失和出错会使交易和流程出错
（B）Data that other data sits hierarchically beneath数据是由多层级组成的
（C）Data that rarely, if ever, changes数据很少改动
（D）Data that is only held in one data source数据是由一个数据源把控
（E）Data about the business entities that provide context for business transactions为业务交易提供上下文的业务实体数据 答案解析: 该题目直接考概念，P514，我截取内容如下: 其它几个选项从理解上都是对的，但他们都是对主数据的一些描述，并不能作为主数据的定义(definition)使用
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