For Exercises 1- 10 , match the activity with the phase of the object-oriented methodology.
A. Brainstorming
B. Filtering
C. Scenarios
D. Responsibility algorithms

|1. |Reviewing a list of possible classes, looking for duplicates or missing classes. |
| |B |
|2. |Asking "what if" questions. |
| |C |
|3. |Assigning responsibilities to classes. |
| |C |
|4. |Generating first approximation to the list of classes in a problem. |
| |A |
|5. |Assigning collaborators to a responsibility. |
| |C |
|6. |Developing algorithms for the responsibilities listed on a CRC card. |
| |D |
|7. |Outppput from this phase is a fully developed CRC card for all classes.