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You will find the information you need here. :3 Good luck!
(Says I have to cite my sources so here goes: I just copy/pasted your question into Google lol)
Answer:
neither of you are right
Explanation:
china and japan are two completely different countries. Both people from each country are asian, but each are chinese and japanese respectively.
Answer:
The 12 survivors are people who are married (6 couples), the word "single" is the keyword denoting those only people who are single had died.