For most people, the impression of the Great Wall is majestic, winding, winding, Badaling, Juyongguan, Shanhaiguan, Mutianyu and other scenic spots. But they account for less than the entire Great Wall, and the rest of the Great Wall is mostly submerged in In the wilderness, the protection situation is worrying. Which of the following, if true, best supports the above conclusion? ['The ancient Great Wall in remote areas has been stolen.', 'Curiosity and challenging explorers tend to climb the Wild Great Wall.', 'The relevant laws and regulations protecting the Great Wall lack implementation rules and are difficult to implement.', 'The Great Wall in the scenic area is more vulnerable to tourists and cannot be repaired in time.']