A city council meeting is planned to discuss the possible reasons for the trend shown in the graph.
Patricia, a local student, conducts some research of her own. She finds graphical data supporting the idea that the change in the
city's population over the past 5 years has caused the change in the amount of solid waste ending up in the landfill. She plans to
present her findings to the city council.
Which of the following graphs most likely represents Patricia's data?