abrication refers to a researcher's falsification and fictionalization of material that does not exist in the research process (e.g., images, data, procedures, or results) and the use of fictional data as research results or even in the literature review. Which of the following is an act of fabrication? (1)To obtain a masters' degree within the deadline, Xiao Guang copied more than 10,000 words from a document in his thesis. (2)Xiao Jiu still was yet to obtain three data results. However, to deliver the interim experiment data, Xiao filled in random numbers in the three incomplete fields. (3)Since the professor needed interim experimental data, Flora copied experimental data from her classmates because her experiment was incomplete. (4)Xiao Yan analyzed all 300 research questionnaires but did not confirm if the questionnaire respondents met the research needs