Context: For a second , he looked surprised but he recovered quickly . " Uncle ... I do not know which time you are referring to . Probably you are assuming that the things are same as you saw two decades back when you left India .

Question: Why is the uncle confused about where he is ?
Options:
0. The narrator tried to trick him .
1. He is having a nightmare .
2. None of the above choices .
3. He is elderly and is experiencing dementia .
Answer: 3