What are the requirements for carrying cargo in passenger compartments?

The requirements for carrying cargo in passenger compartments emphasize the importance of safety and proper stowage. The correct answer highlights that cargo must be stowed appropriately, packaged securely, and not obstruct access to emergency exits or pathways.

When cargo is properly stowed, it minimizes the risk of shifting or becoming a hazard in the event of turbulence or sudden maneuvers. Additionally, ensuring that cargo does not restrict access is crucial for passenger safety as it allows for an unobstructed evacuation route in case of an emergency. This compliance is particularly important for adhering to regulations that aim to protect both passengers and crew onboard.

In contrast, the other options do not fully align with these safety standards. Limiting cargo to overhead compartments disregards the need for proper stowage protocols that apply to all areas of the cabin. Allowing unsecured cargo, regardless of weight, poses significant risks during flight. Lastly, only permitting cargo beneath seats and requiring specific labeling may not encompass all necessary safety measures, particularly if it limits flexibility in load distribution throughout the cabin. Overall, the comprehensive requirements detailed in the correct response ensure the safe transport of cargo within passenger compartments.