Experiments have found that a small amount of a certain oral substance can make people lie in the polygraph test without being detected. The psychological stress caused by polygraph can be effectively suppressed by this type of tranquilizer drug without significant side effects. Therefore, these Drugs can effectively reduce the psychological stress of daily life without significant side effects. Which of the following is most likely to be hypothesized by a reasoning argument? ['Any type of tranquilizer has the effect of suppressing psychological stress.', 'If the tester is prohibited from taking any medication, the polygraph will have a completely accurate test result.', 'The psychological stress caused by the polygraph is similar to the psychological pressure people face in daily life.', 'More and more people are facing increasing psychological pressure in daily life.']