This bar chart ranks 26 students by their daily screen hours, displaying each roll number on the vertical axis and screen time on the horizontal axis. The bars are sorted in descending order, with black bars that turn steel-blue on hover and a tooltip showing the exact roll number and hours. Built with D3 v7, the visualization loads CSV data via `d3.csv`, uses `d3.scaleBand` for the categorical axis, `d3.scaleLinear` for the numeric axis, and renders as SVG with gridlines created through `d3.axisBottom`.