This example demonstrates the simplest possible way to display text using D3 version 7. It shows the phrase “Hello D3 version 7” centered on the page, with the body styled at a large font size. Using the `select` method from the D3 library, the code targets the `body` element and sets its text content directly, without requiring any data binding or SVG elements. The visualization relies entirely on D3’s DOM manipulation capabilities rather than chart or layout functions.