Answer:
1. Topic.
2. Main idea.
3. All three? I don't understand what you were trying to say in the question. If you meant what to do to look for the main idea of a text, all of the above should be correct.
Explanation:
I think it is B. He tries to look the part.
C.The purpose for writing this essay is to inform.
Banishment,
deportation,
displacement,
expatriation,
expulsion,
relegation.
Do I need to use your user name or do you want me to make up a name?