Something along the lines of seeing the jews treated as pigs on a farm if I remember correctly, I believe it is a reference to George Orwell's "Animal Farm".
It may be slightly off my memory is a bit foggy, but it's definitely the right concept I'm sure.
B
It lists the different topics of each paragraph and summarizes the paper well.
The correct answer is his, that is a possessive pronoun.
Think about, maybe it is (D) They focused only on solving the problems & issues that had troubled their cities in the past. you see they would be focusing their city a lot because they don't what can destroy their and what can't. they have to make sure that their is no bad guys attacking their fort and that there is no problems with the way the cities were built.
hope i helped