Q. Any variable in a use case has: (Solved)
1. At least one valid value and one invalid value
2. At most one valid value
3. At most one invalid value
4. At most one valid value and one invalid value
- a. At least one valid value and one invalid value
1. At least one valid value and one invalid value
2. At most one valid value
3. At most one invalid value
4. At most one valid value and one invalid value