This bubble chart compares cereal manufacturers by plotting each cereal’s rating on the x-axis against its sodium level on the y-axis. Bubble diameter encodes calorie count, while color distinguishes the seven manufacturers, with legends for both size and color. The visualization loads data from a CSV file and renders as SVG using D3 v7, employing `d3.scaleLinear` for axes and bubble size, `d3.scaleOrdinal` with `d3.schemeSet1` for colors, and `d3.axisBottom` and `d3.axisLeft` for the axes.