This example demonstrates a simple pet selector interface using React. It shows a labeled dropdown menu offering six animal options (dog, cat, hamster, parrot, spider, goldfish), with the hamster preselected. The React component `Dropdown` renders the native HTML `<select>` element, managing its state through `useState` and updating the selection via an `onSelectedValueChange` callback. The visualization uses ReactDOM for rendering and imports D3 v6 for potential data manipulation, though no D3-specific functions are directly applied here.