Choose the correct preposition

1. All of the information is
   [on|at]
   my laptop.
2. Andrew is interested
   [in|of]
   science fiction.
3. Carla is curious
   [in|about]
   robots and how they work.
4. I am fascinated
   [by|about]
   the idea of ghosts and haunted houses.
5. Steve is enthusiastic
   [about|at]
   finding UFOs.