案例分析题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 various results are computed by the product and presents this information in the form of a （） . and associated scenarios. The second is （） , which determines the classes and their attributes; Then determine the interrelationships and interaction among the classes. The last step is （） , which determines the actions performed by or to each class or subclass and presents this information in the form of （） . The last step is （）

A. use-case modeling
B. class modeling
C. dynamic modeling
D. behavioral modeling