问题：
[单选题] Accelerated analysis approaches emphasize the construction of（ ）to more rapidly identify business and user requirements for a new system. As an accelerated analysis technology，（ ）reads the program cod
A、existing database and application program
B、application program and user interface
C、existing database and user interface
D、existing database，application program and user interface
参考答案：
D、existing database，application program and user interface
● 参考解析
