Your vessel is loading Class 1 explosives using the vessel's cranes. What style of hook or shackle are you required to use to attach the lifting sling to the runner?

Correct Answer: Option C — a hook that has been closed by wire

To prevent accidental unhooking or detachment of explosive loads during cargo operations due to shifting or slack lines, standard safety protocols require the use of an open hook closed securely by wire (moused) or a certified locking safety shackle.