Thank you for the opportunity to help you with your question! I hope my answer is satisfactory. If you have any questions or comments, let me know!
Let's start by narrowing down the answers into the most plausible. Here is the definition for liquid from dictionary.com: "having a consistency like that of water or oil, i.e., flowing freely but of constant volume."
Based upon the definition, we know that answer B does not make sense. Students sitting in a full auditorium do not model something "flowing freely" though they are of constant volume.
Answer E also makes no sense. There is nothing that would resemble fluids in this model or volume.
That leaves us with answers C and D.
Answer C makes the most sense to me. There are always a constant amount of players on the soccer field even as they are moving around (or flowing freely). The number never changes (just like volume in the definition)
Answer D could almost be it but there will always be people leaving and entering the dance floor, always changing the number ( again, just like volume)
Please let me know if you need any clarification. I'm always happy to answer your questions. Have a good day!
Sep 3rd, 2015
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