article: Is your schoolbag too heavy to carry? The e-schoolbag will help you. It is said that e-schoolbags are going to be brought into use in Chinese middle schools soon.
  Heavy schoolbags have been a serious problem for a long time. But the e-schoolbag will work it out. An e-schoolbag is much lighter than a usual schoolbag. Perhaps, the e-schoolbag should be called an e-textbook. It is as small as a usual book, but it can still have all the things for study, such as a textbook, an exercise book and so on. They can be made into chips  like stamps. The students can read the text page by page on the screen, take notes, or even send e-mails to their teachers. They only need to put the right chip into the e-schoolbag and then the students can use it.
  Some people say that e-textbooks can be easily broken, while others say it is not good to student's eyes. But only time will tell.
question: Which statement is NOT true according to the passage?
options: That e-schoolbags may be easily broken It may not be good to student's eyes. They have been into use in school in China. The e-schoolbag will solve the problem of the heavy schoolbags.