A single static SVG circle centered at coordinates (100, 100) with a radius of 50 is drawn on a 960-by-500 canvas. The page’s body text is replaced with the phrase “Hello D3 version 7” using D3’s `select` API, imported from the `d3` module. The example demonstrates basic SVG shape creation alongside D3’s DOM manipulation, with the SVG markup written directly in the HTML and the text update performed via JavaScript.