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Well, you can take the example of different genres of music. One person might like pop while others might be more interested in country, jazz, hip hop etc. So, what seems good for one might not seem good for others due to their tastes in different things.

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should be D if these aren't correct for you come back and I can give information
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They would have to force foreigners out of the country and create strict laws like north Korea when a xenophobic country has failing birth rates they have funded artificial intelligence matchmaking schemes to help people find simple things like love and help