Solution

The correct answer is option 1.

Key Points

 The behavioral model indicates how the software will respond to external events. To create the model, the analyst must perform the following steps.

1.  Evaluate all use-cases to fully understand the sequence of interaction within the system.
2. Identify events that drive the interaction sequence and understand how these events relate to specific objects.
3.  Create a sequence for each use-case
4. Build a state diagram for the system
5.  Review the behavioral model to verify accuracy and consistency.

∴ Hence the correct answer is (A), (B) and (C) only.