They're glued to their horses because they're nomadic, so they never completely settle in one place. I have never read Marcellinus before but that seems like the most logical answer. Hope thus helps!
<span>The Aztecs build canoes to move around the lakes and canoes. They also built retaining walls to keep some of the water at bay. The Aztecs also built floating gardens, like an island, to grow crops.</span>
Answer:
Could you zoom into the image? Then I can answer it.
I'm pretty sure the correct answer is C. Hope i wasn't to late.