In the driving qualification test, the pile test is a highly demanding test. In the previous tests of various driving schools in Nanya City, some examiners violated work discipline, and some examiners were not responsible and were more random These are the issues where the opinions of trainees are relatively concentrated. Starting from January 1, this year, each driving school test venue has installed a pile tester on the piles on the site. Computer operation improves science. Which of the following, if true, would most strongly doubt the function of this instrument? ["Machines are invented by humans, and they are ultimately operated by humans, so there is still a great need to prevent the examiner's favor in law enforcement.", 'The test instrument is strict in the discipline of examinations, but it will also cause some students to object, because it will be difficult to trust the relationship and go through the back door.', 'The results of machine measurement are printed directly by the computer, and the problem of randomness can be completely eliminated.', "The field driving test should also include a check on whether the student's operation in the cab is normal."]