New research recently revealed that men still don t do anywhere near their share of the cleaning . Childcare and cooking are much more equal these days but women are still far more likely to get landed with vacuuming crisps off the carpet . This led columnist Jon Chait to make a provocative suggestion : What if it is because men just have lower standards of cleanliness Sure enough one study found that \sin gle men with no one else to do the cleaning still do half as much as \sin gle women . This doesn t prove sexism s not involved perhaps it is social pressure that causes women to care more about cleanliness but it does imply that people are differently bothered by hygiene ( 卫生 ) . To feel motivated to clean something , you ve first got to notice and care that it s dirty . In the book Hidden in Plain Sight : The Social Structure of Irrelevance sociologist Evi atar Ze rub a vel points out _ thing we do depends . 1 \div 5 1 . According to the passage why do men do less cleaning A Because they have no interest in cleanliness . Because they think it is women s duty . C ) Because they have done other chores such as childcare . D Because they have lower awareness of cleanliness