In recent years, many students have chosen to study abroad. They believe that gold plating can increase competitiveness for future employment. However, the data in the 2017 Returnee Employability Survey Report shows that it is not easy for returnees to apply for a job in the country. There are certain disadvantages. Which of the following, if true, best explains the phenomenon. ['The popularity of returnee identity has a greater relationship with the industry.', 'Most returnees are unfamiliar with the domestic employment situation and business needs.', 'The actual salary level of most returnees falls short of their expectations.', 'Graduates from overseas universities such as Oxford are still favored by employers.']