A minimal HTML page renders a single SVG circle without applying any D3 transformations or data binding. The example demonstrates the foundational structure for a visualization: an HTML document containing an inline `<svg>` element with a `<circle>` positioned at coordinates (50, 50) and a radius of 50. The code uses no external libraries, solely relying on native SVG and HTML APIs. The rendering approach is direct SVG markup, and no data source or interactive behavior is present beyond the static geometric shape.