What does the main idea about ocean waves capture devices, discussed in both paragraph and graph, describe?

The main idea about ocean waves capture devices focuses on how these devices operate and their locations. This encompasses understanding both the mechanics of the devices—such as how they harness energy from the waves—and the specific geographic areas where they are implemented. By addressing both the functionality and the situational context, the information provided in the paragraph and graph allows for a comprehensive understanding of the devices' practical applications.

In contrast, other options explore different aspects. The environmental impacts would delve into how these devices interact with marine ecosystems but does not specifically cover their operational mechanics or locations. The economic costs would address fiscal concerns related to the devices' development and maintenance, which is a separate topic from how they operate. Lastly, public opinion on renewable energy sources reflects societal attitudes rather than the technical or locational specifics of ocean wave capture devices. Thus, focusing on the device's function and placement encapsulates the primary concept being conveyed.