Final answer:
Cargo covers serve to protect people from spilled cargo, are sometimes a safety requirement by law, and guard the cargo from adverse weather conditions.
Step-by-step explanation:
The correct statement about cargo covers is D. All of the above. Cargo covers play multiple roles. They indeed protect people from spilled cargo, ensuring that in the case of an accident or sudden movement, materials do not spill and potentially injure people nearby. In some localities, the use of cargo covers is mandated by state regulations, making it a safety requirement in some states. They are also used to protect cargo from weather, such as rain, snow, and extreme temperatures that could damage the goods being transported. The correct statement about cargo covers is option C: They protect cargo from weather. Cargo covers are designed to protect the cargo from various weather conditions such as rain, snow, wind, and sun exposure. They act as a barrier between the cargo and the external environment, preventing damage and ensuring the safe transportation of goods.