This network graph displays a social network of ten people connected by friendship links. The visualization uses a force-directed layout via `d3.forceSimulation` with link distance, charge, collision, and centering forces. Nodes are rendered as green circles with labels in an SVG, and links appear as blue lines with arrow markers. Each node is draggable, and hovering highlights the circle. Data comes from `graph.json`, loaded with `d3.json`. The code imports specific functions like `select`, `scaleOrdinal`, and `selectAll` from D3 v6.