PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZSelect all of the choices that are equal to (-5) - (-12).

1. -7
2. 7
3. The difference between -5 and -12.
4. The difference between -12 and -5.
5. (-5) + 12
6. (-5) + (-12)