American schools do not have separate classes for boys and g

American schools do not have separate classes for boys and girls.If boys want to cook or to sew,they can learn these things in classes that are no longer just for girls.If girls want to repair cars,they can now learn this in school.Most students like to have boys and girls on the same baseball team.
Many boys and girls dress alike in school.They wear blue jeans and sport shirts.Some have long hair and some have short hair.Sometimes a boy has longer hair than a girl.
Even the language is different.Students learn to say fire fighter instead of fireman,police
officer instead of policeman,and letter carrier instead of mailman.A person does not need to be a man to fight a fire or to deliver the mail
Most people think that these changes are good.They give all people an equal chance to be happy and to do what they want to do with their lives.Fathers like to tell their sons that they can grow up to be president.Today,mothers can tell the same things to their daughters
We may infer from the text that in the past in American schools_______.
A.there were many differences between boys and girls
B.boy could do everything but girls couldn’t
C.boys and girls were the same in everything
D.girls only learned how to sew and cook
这道题选什么为什么,具体原因

a 再答： 男生和女生之间还是有一些不同，为了差异化的相互学习，美国的学校是不分男女班的！
再答： b，男的啥都能干，女生不是！错。
再答： c，男生女生干啥都一样，错！做饭拉啥的男的就不行
再答： d,女的只能学习缝纫和做饭，错！这是男的向女的学的！
再问： a为啥对，没看懂
再答： 你是哪的？
再答： a，就是说男生和女生还是在某些方面存在不同。哪里不对吗？
再答： 这个小孩真勤劳，这么长，居然打出来了
再问： 复制的