Answer: The statement "Jews all over Europe were rounded up and sent to concentration camps to be murdered" is correct.
Explanation: Hitler and the Nazi regime implemented a systematic and brutal campaign to persecute and ultimately exterminate Jews, which is known as the Holocaust. Approximately six million Jews were killed during this campaign, which took place across Europe during World War II. It is important to note that while many Jews did flee from Europe before the war, the vast majority were not able to escape and were subjected to persecution and violence by the Nazi regime.