Which of these sets of documentation represent the documents that should be placed on a pallet prior to transport?

The correct set of documentation for placing on a pallet prior to transport includes two bags, one containing a DD Form 2775 placard and a pallet contents listing behind it, and the other bag containing only a DD Form 2775 placard. This choice effectively ensures that all crucial information regarding the pallet's contents and identification is readily available and properly documented for transport.

The DD Form 2775 serves as a placard that provides essential identification and handling instructions for the cargo. Including a pallet contents listing ensures that personnel involved in the transportation and handling processes have a clear understanding of what is being shipped, which assists in safeguarding the cargo and streamlining the logistics process.

Alternative options lack sufficient documentation or the appropriate combination of documents. A single placard does not provide a comprehensive overview of the pallet's contents, while a bill of lading and shipping invoice are typically more relevant to general shipping logistics rather than specifically identifying and detailing pallet contents. Thus, option A is the most suitable choice based on best practices for air freight documentation.