{"answers": "C", "options": ["m : many chinese schools became single sexed due to the gender discrimination .", "m : in china , many schools made strict rules for their students in the 1970s .", "m : so many schools in england became mixed . it was a huge change .", "m : that 's why many schools in american became mixed in the 1970s ."], "article": "m : in england today , our schools mixed or single sexed . f : well . there are both . 50 years ago , all schools used to be single sexed . i mean boys only or girls only . then in the nineteen seventies , many schools changed and became mixed .", "id": "train_1179"}