单项选择题
Extreme Programming (XP) is a discipline of sofiware development with (1) of simplicity,communication, feedback and cuurage. Successful software development is a team effort - not just the development team, but the larger team consisting of customer, management and developers. XP is a simple process that brings these people together and helps them to success together. XP is aimed primarily at object-oriented projects using teams of a dozen or fewer programmers in one location. The principles of XP apply to any (2) project that needs to deliver quality software rapidly and flexibly. An XP project needs a (3) customer to provide guidance. Customers, programmers, managers, are all working (4) to build the system that's needed, Customers - those who have software that needs to be developed - will learn simple, effective way to (5) what they need, to be sure that they are getting what they need, and to steer the project to success.
问答题
阅读下列说明和图，回答问题1至问题4，将解答填入答题纸的对应栏内。
说明：某公司欲开发招聘系统以提高招聘效率，其主要功能如下。
（1）接受申请。
验证应聘者所提供的自身信息是否完整，是否说明了应聘职位，受理验证合格的申请，给应聘者发送致谢信息。
（2）评估应聘者。
根据部门经理设计的职位要求，审查已经受理的申请；对未被录用的应聘者进行谢绝处理，将未被录用的应聘者信息存入未录用的应聘者表，并给其发送谢绝决策；对录用的应聘者进行职位安排评价，将评价结果存入评价结果表，并给其发送录用决策，发送录用职位和录用者信息给工资系统。
现采用结构化方法对招聘系统进行分析和设计，获得如图4.26所示的顶层数据流图、图4.27所示0层数据流图和图4.28所示1层数据流图。
表示，若由Θ表示，则正确的是（）
