Class 7 - Radioactive Material packing instructions are listed in Subsection:

• A. Subsection 9.5
• B. Subsection 8.5
• C. Subsection 7.5
• D. Subsection 10.5

Answer: (D)

The packing instructions for radioactive materials are organized in a dedicated subsection within Class 7 so that shippers have a single, clear reference for how to package, label, and test these special shipments. Subsection 10.5 specifically covers the packaging requirements for radioactive materials, making it the correct place to find all the necessary packing instructions. The other subsections mentioned correspond to different topics or classes and do not contain the radioactive material packing instructions, so they’re not applicable for this particular reference.