If these conditions A & B are independent. Assuming as these are not
interlinked (as c d and e are not affecting each other) you can simply write 4
tests as below:
1. Condition A true value
2. Condition A false value
3. Condition B true value
4. Condition B false value
If they are linked then you can test the below conditions:
1. Condition A true value Condition B true value
2. Condition A true value Condition B false value
3. Condition A false value Condition B true value
4. Condition A false value Condition B false value
If you are not convinced with these please provide more details.
Regards
Valusa