With healthy travel becoming more popular today, adventure-themed outdoor sports have more and more fans. A survey of the causes of outdoor safety accidents in 2011 today shows that getting lost is the number one cause of outdoor safety accidents. Among them, 121 were lost directions, 32 were unable to find a way out, and 13 were physically struggling. Therefore, experts recommend that to prevent getting lost, we must first look at the strategy, be familiar with the route, and not blindly pursue the beauty and lose the most basic personal safety. If one of the following is true, the question of the above statistical results is the weakest? ? ['There were 170 outdoor safety accidents due to subjective negligence of "tourism" in 2011.', 'Outdoor safety incidents due to lack of professional leaders are increasing.', '01 safety accidents occurred in 2011.', 'More than 166 accidents occurred in 2011 due to lack of outdoor equipment.']