Text-based stimulus: Mobile accessibility scan report shown beside a 390 px phone preview. Report title reads Responsive Scan Results. Three rows have warning icons and labels: Text below 12 px, Horizontal scrolling detected, Menu button missing accessible name. The phone preview shows tiny paragraph text, a content card extending beyond the right edge, and a hamburger icon button with no visible label. The mobile accessibility scan image flags three issues: text below 12 px, horizontal scrolling, and unlabeled menu button. Which fix set best addresses responsive design rather than only visual appearance?