Sogole's decision to help Kaddo adds to the main theme, selfish people are often left alone in difficult times, by showing that Kaddo remains selfish and reckless even in his hour of most need. Kaddo gets help when he needs it, which he didn't do before when the peasants asked him for help, but wastes the opportunity of starting over and dies.
Maybe Switzerland. Because they have loadsss of chocolate. If not maybe USA.
C. You should add a lot of toppings
I'm not sure Orwell does, or that it matters. You can read this story as a brutal kind of entertainment, and not consider the issue of trust at all. So, that is one option.
If you really want to examine what Orwell does to gain the reader's trust, start with the opening line, where Orwell says he was hated by a lot of people.
