This scatter plot shows the relationship between horsepower and fuel efficiency (miles per gallon) for ten car models, with each point colored by the car’s region of origin (USA, Japan, or Europe). Built with D3 v7, the code loads the `cars.csv` file, uses `d3.scaleLinear` for both axes, and applies `d3.scaleOrdinal` with `d3.schemeCategory10` for the categorical color encoding. SVG circles are positioned via x/y scales, and labeled axes are generated with `d3.axisBottom` and `d3.axisLeft`.