According to the survey, most TV viewers are quite disgusted with the same advertisement repeatedly played in TV programs. Therefore, some people think that the purpose of the manufacturer's advertising is not only not achieved, but even has a negative effect, which ultimately affects the product sales. Which of the following, if true, would most weaken the conclusion? ['as long as the ads are wonderful and creative, there are still many audiences who are willing to watch.', 'The purpose of the manufacturer is to allow the audience to remember the products they are selling without taking into account the feelings of the audience at the time.', 'some TV viewers do some housework or take a break during advertising time.', 'TV advertisements of many powerful large companies often use the same advertisement repeatedly.']