From September to December 018, the rents of rents in a certain tier city skyrocketed. Some people believe that the root cause of the rise in rents is that some long-term rental apartment operators are rushing to buy properties and vicious competition. Which of the following, if true, can best refute the above view. ['There has always been an imbalance in the rise in house prices and rents in most first-tier cities.', 'The change in supply and demand caused by the new settlement policy is the only reason for the skyrocketing rents.', 'The operators of a few short-term rental apartments also have the problem of vicious competition such as driving up rents.', 'In September-December 2018, some rental courtyard and industrial area apartments in the city were demolished.']