Which event contributed most significantly to the settlement of Muslim peoples in Israel?

1) Exodus
2) Diaspora
3) Holocaust
4) World War 2

I think 2 but not sure

Nope.

I don't think any of thee answers is correct. The Exodus and Diaspora occurred hundreds of years before the birth of Mohammad, so long before there were any Muslim peoples.

The Holocaust and World War 2 brought Jews into Israel.