JN and MI ( one of my two male best friends ) and I went for a walk , we saw this girl that MI knows and a bunch of her girlfriends . The girls went to go smoke pot ( I grew out of that a long time ago ) JN still smokes pot from time to time and MI went back to the party at some point but no one remembers him leaving .

Question: Why did no one remember MI leaving ?
Answer: Because it was a party and everyone was drunk .Because it was a party with many people there .None of the above choices .Because he said goodbye to everyone before leaving .