This example shows a dropdown menu listing the names of the first 649 Pokémon, fetched from the PokeAPI. It displays the data as selectable options within a simple interface. The code uses React hooks such as `useState` and `useEffect` to load the JSON data via `d3.json`, and then renders the selection list using a React `<select>` element generated by a custom `SelectionButton` component. The visualization is minimal, focusing solely on data retrieval and list presentation.