This pie chart visualizes COVID death statistics across seven US states, with each slice’s size proportional to the reported death value. The chart uses SVG rendering with D3 v4, employing `d3.pie()` and `d3.arc()` to generate the geometric paths, while `d3.scaleOrdinal` assigns categorical colors. Hovering over a slice triggers interactive mouseover events that display a tooltip with the state name and value, and adjusts slice opacity to highlight the selected segment.