Based on the attached article: Tkaczynski, A., & Rundle-Thiele, S. (2020). Event market segmentation: a review update and research agenda. Event Management, 24(2-3), 277-295. Based on the article above, Answer the following questions, 1. Based on the article above, Have the four segmentation bases developed by Kotler (1980) that are used by researchers to profile attendees change over time? (50 marks) 2. Based on the article above, Have the research methodology use to conduct the market segmentation studies changed over time? (50 marks)