The shortened form of a word that has an apostrophe in place of a missing letter is called A contraction
Through the words of jargon, speaking style, or attitude, the writer establishes
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.