Final answer:
Katy's favorite rides at the amusement park, the roller coaster and water slide, belong to the evolution of entertainment category.
Step-by-step explanation:
Katy's favorite rides at the amusement park, the roller coaster and water slide, belong to the category of evolution of entertainment. Amusement parks started to appear at the end of streetcar and rail lines during the late 19th century, offering thrilling experiences like roller coasters and Ferris wheels. These parks provided an escape from the difficulties of everyday life for working-class residents and became popular forms of entertainment.