Hiya!
The correct choice would be "Polite"
Civilized means polite, and well-mannered in the English dictionary.
Good-luck! :D
Answer:
The sentence it will introduce will be contrasting to the sentence(s) before that.
Explanation:
E.g. I woke up late. <em>However</em>, I got to school on time.
["However" here contrasted the idea that "I" might be late for school since "I" woke up late]
Extrinsic. Extrinsic means not part of the essential nature. But intrinsic means belonging to essential nature.