Which of the following contributed to the genocide during the holocaust?
- Nazi ideology that promoted antisemitism and racism
- Implementation of discriminatory laws and policies targeting Jewish people
- Propaganda that dehumanized Jewish people and promoted hatred towards them
- Establishment of concentration camps and extermination camps for the mass murder of Jewish people
- Collaboration of local authorities and civilians in occupied territories in rounding up and deporting Jewish people to concentration camps
- Inaction and lack of intervention by other countries and individuals to stop the genocide.