The correct answer is option 3, UAE. In the one-day cricket world cup of 2007, Scotland, Canada, and Netherlands were all participants. However, UAE was not a participant in this particular tournament.
Scotland, Canada, and Netherlands are all associate members of the International Cricket Council (ICC) and have competed in various cricket tournaments, including the one-day cricket world cup. These countries, although not traditional powerhouses in cricket, have shown promising performances in international cricket over the years.
On the other hand, UAE (United Arab Emirates) is an affiliate member of the ICC and has participated in other cricket tournaments, like the ICC World Twenty20 Qualifier. However, in the one-day cricket world cup of 2007, UAE did not qualify to be a participant.
It is essential to note that while the provided answer is generally correct, there might be exceptional circumstances or changes in teams` participating status over time.