Is to show the division of power between the three arms of goverment
"patria" here means "fatherland"
expatriarion must then refer to loosing of a fatherland.
Specifically, the legal right of expatriation means that you can legally renounce a citizenship (in the US, this was made available in 1868).
Answer:
I think season change is the changing of the seasons when it time comes
Government policy is formed as a result of the competition between groups with different goals and interests
I believe your answer is D