Wiesel said that the Holocaust "happened yesterday or an eternity ago" to (a.) to show that he remembers the Holocaust clearly and always will. Wiesel meant that the memories from the Holocaust were very strong that he can never forget those who suffered.
This is a free response question right? I would suggest maybe watching some videos about this guy because my brother had the same question (he's in k12) and the videos should really help. its ok if you didn't read the book. Elie Wiesel is a surviver of the horrible holocaust that took place wiping out millions of Jews. He's said himself in some interviews that he believes staying silent isnt the right thing to do. just watch a few vids about him and you should be about to easily answer this question. Hope I helped:)
Answer:
He wants the reader to know that it is them doing that part
Explanation: