This example demonstrates a simple dropdown menu interface built with React, displaying a list of pet options such as Dog, Cat, and Goldfish. The code defines a reusable `Dropdown` component that maps over an array of options to render `<option>` elements, while a second static `<select>` element shows a hardcoded menu. React 16.10.0 and ReactDOM are used via UMD builds to render the interface into the `#root` div. The example highlights basic component structure and controlled option rendering in a React application.