This example shows how to create an interactive menu in React using controlled components. The app renders a dropdown of pet options, and the selected value is managed by React’s `useState` hook, logging each choice to the console. The reusable `Dropdown` component receives `options`, `id`, `selectedValue`, and an `onSelectedValueChange` callback, using the native HTML `select` element. The code relies on React 18 and ReactDOM for rendering, while D3 v7 is loaded but not explicitly used in the visible logic.