The sleeper effect refers to the phenomenon that the transmission effect of source credibility will change over time. That is to say, after a period of time after the transmission, the positive effect brought by the high credibility source is decreasing, while the low The negative effects brought by credibility sources have turned into positive effects. According to the above definition, which of the following is a sleeper effect? ['Celebrity advertising can only increase sales in the short term.', 'The name of a certain product can easily cause people to have a bad association. Despite its high quality, it has not been able to open the market.', "Xiao Li liked a very satisfied product the night before, and the next morning she saw it but she didn't think so.", 'Li, who loves to watch martial arts novels, often had an impulse to fight when he was young.']