Context: Although I guess in some ways , it affected every American indirectly . Today is a day that everyone who was old enough to remember and understand what happened that morning should know as the turning point in American history . I do n't think that this country will ever be the same .

Question: Which of the following may have caused the narrator 's feelings ?
Options:
0. The narrator is talking about America .
1. The narrator is talking about understanding Americans .
2. None of the above choices .
3. The narrator could be talking about 911 .
Answer: 3