Answer:
2nd or 3rd
Step-by-step explanation:
The first statement is wrong. Homosexuals and gypsies were persecuted as well. The last one is also false, because Israel is a Jewish country and was founded AFTER the Holocaust, with the aim of providing a safe space for Jews.
I don't know which one of the middle ones are correct, but if your text directly mentions the Nazi party and details the camps, then the second one is correct. If your text is just about the Holocaust in general and briefly touches on the Nazi party, I would go with the 3rd option.