I believe the answer would be C, its. Its is used to describe something that's connected to an animal or an inanimate object.
What is the cause, and what needs to be brought?!
Answer: My backpack was still sitting where i had sat it
Explanation:
It is C, how you feel when someone disagrees with you.
The most important would be A, considering the example that if you are a girl wearing shorts to a Middle Eastern country, many would find that offensive, since most religions do not let them show skin in public.