What is the difference between concentration camps and extermination camps?

The main difference between concentration camps, where prisoners of various nationalities were incarcerated, and extermination centers (Auschwitz, Treblinka, Sobibor, Belzec, Kulmhof, Majdanek), where nearly all the victims were Jewish, was in the first place the annihilation method, while the final goal – the physical ...

To be honest i thinks its between the first answer and the third answer