Select ALL items that the provided material identifies as factors to consider when choosing a route: weather, airspace structure, aircraft performance, terrain and obstacles, applicable regulations, and aircraft paint colour.

### Why this is right Route selection must account for conditions and constraints that affect whether and how the aircraft can safely travel the route. Weather, airspace, performance, terrain, obstacles, and regulations are all named in the material. ### The concept A route is more than a line between two airports. Weather can affect whether a route is usable, while airspace structure and regulations constrain where or how the aircraft may fly. Aircraft performance determines what the aircraft can reasonably do, and terrain or obstacles affect route and altitude planning. Paint colour does not determine route suitability in the material. ### The other options - **F. Aircraft paint colour**: it is not listed as a route-planning factor and does not determine the route’s operational suitability. ### Terms - **Airspace structure**: the organization of airspace that pilots must consider when planning and conducting a flight. ### Remember Assess route conditions, aircraft capability, terrain, and rules, not incidental aircraft characteristics.