A survey of multiple provinces found that for extroverts, spending a lot of time on online social networking does not affect their willingness to communicate face-to-face with others, and introverts do not become social masters even if they do not socialize online. Therefore, some researchers believe that the concern that online social will hinder traditional social is unnecessary. Which of the following is true to best support the above conclusion? ['There are many people who spend a lot of time on social networking and are unwilling to communicate face to face with others.', 'No matter which method is adopted, the total time of most people participating in social activities is relatively fixed.', 'With the help of online socialization, many people have improved their abilities and confidence in traditional socialization.', 'The research was conducted by a university, and among the students of the university, online social networking is not the main way of socializing.']