Mr. Wang of the Institute of Technology said in an interview with the journal: "In recent years, science students have generally been more interested in studying current affairs and politics than in the past. Because in my class, students were not absent from almost every lecture on current affairs and politics. It was almost unimaginable a few years ago. ". Which of the following assumptions does Mr. Wang's conclusion rest on? ['The occurrence of a series of events at home and abroad in recent years has greatly attracted science students.', 'The political awareness of college students enrolled in recent years is generally stronger than previous students.', 'Attitude to current affairs politics lectures is an important indicator of whether college students are interested in current affairs politics learning.', 'In terms of current affairs and political studies, science students cannot be required to meet the standards of liberal arts students.']