下列选项中，属于分类变量的有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30461' and id < 2461089 and id<>'2461089' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30461' and id > 2461089 and id<>'2461089' order by id asc limit 5