80. According to surveys, more than 90% of drivers who have lost their cars in a certain place have not installed a car satellite navigation system. This shows that car satellite navigation systems can effectively prevent drivers from getting lost. Which of the following can weaken the above argument most? ['Many old drivers do not have in-vehicle satellite navigation systems and rarely get lost.', 'The use effect of the car satellite navigation system is not ideal, and it has little effect on preventing getting lost.', 'ly less than 10% of the local cars have a car satellite navigation system installed.', 'Drivers with in-vehicle satellite navigation systems, more than 90% often use them.']