This example demonstrates the simplest possible D3 setup: it renders the text “Hello D3 version 7” in large, centered type on a blank page. The code imports the `select` function from the D3 module and uses it to target the `body` element, setting its text content directly. The page loads D3 version 7.8.2 from a CDN and runs the logic in a separate `bundle.js` file, showing a minimal project structure for starting with D3.