Use the informational text on the Olympic Games to answer the question

What do Athens, Atlanta, and the Tokyo have in common? They are all locations that have hosted the Olympic Games, the worlds largest athletic completion. Every two years, cities around the world to vie to being athletes and entertainment to their corner of the world. Originally, the host cities for the winter and summer games were selected based on what the city already offered for the athletes. Today, the host cities are selected through a much different process. First, the city must prove that it is big enough to host the volume of athletes and spectators. Next, the city must convince its taxpayers that the income from the Olympics will offset the expenses necessary to build any additional structures for competition locations and lodging. Finally, the city must prove its worth as a positive presence on the worlds stage. Hosting the Olympics comes with a large price tag. If the games are so expensive, why do cities want to host the Olympics? Cities are able to show pride in their country, employ people to improve infrastructure, and the profit from the tourism dollars added to the community.
Which text structure does the third paragraph demonstrate?
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Problem/solution