This dynamic scatter plot allows users to explore a dataset by selecting which columns to display on the x and y axes via dropdown menus. Each selection triggers a complete redraw of the chart, showing points with a fixed steelblue fill at a radius of five pixels. The visualization is built with D3.js version 7 and rendered as an SVG element within a plain HTML page. It loads data from a remote CSV file and uses d3.scaleLinear, d3.axisBottom, d3.axisLeft, and d3.select to manage the interactive updates and axis rendering.