Quiz playing is a wonderful way to increase your knowledge of English as a Second Language. Remember that all of our ESL quizzes have titles that are both friendly and technical at the same time… In the case of this quiz you might like to tell your friends about “No, Thank You” but no doubt your teachers will talk about the “Polite Negative Expressions quiz”! If you hear a technical term and you want to find a quiz about the subject then just look through the list of quiz titles until you find what you need.
No, thank you is a polite negative expression.
If you happen to be coming to England from the Far East, you will be well familiar with the thought of 'losing face’: when one or both people in a communicative situation might become embarrassed and/or uncomfortable as a result of something somebody does or says (or, possibly, doesn't say or do).
Answer 4, clearly, is just plain rude.