Data exhibit - Grove Route Plan. Columns: Flight | Cabin | Hub | Month | Status | Load Factor. Rows: FL701 | Economy | East | Aug | Active | 84; FL702 | Economy | West | Sep | Active | 88; FL703 | Premium | East | Oct | Active | 88; FL704 | Premium | West | Nov | Review | 92; FL705 | Cargo | South | Sep | Hold | 95; FL706 | Economy | South | Oct | Active | 82; FL707 | Cargo | East | Aug | Active | 85. Before choosing a top record, the analyst must check whether eligible Active rows include duplicate Cabin values. Which sequence makes duplicates visible without accidentally removing them?