What do you think the quiz question was trying to teach us? I am missing the point because I did not see the phrase “Unsupported Cable Assembly” in the instructional material. The question implies that we can allow something different in the crawl than other places like a basement.
Many times I have seen wiring laying on the floor of the crawl space, instead of being properly supported overhead.
And there have been times when the wiring, that was laying on the floor of the crawl space, was actually running through pools of water.
I didn’t write the question, but this is what came to mind when I read it.