问题：
[单选题] Object-oriented analysis（OOA.is a semiformal specification technique for the object-oriented paradigm.Object-oriented analysis consists of three steps.The first step is（ ）.It determines how the variou
A、collaboration diagram
B、sequence diagram
C、use-case diagram
D、activity diagram
参考答案：
C、use-case diagram
● 参考解析
