The answer is: D. There are not enough people on the island to do all the work.
(I've taken this test before, good luck!)
This statement is<span> jargon, </span>and jargon is the language used by certain professions, such as lawyers, doctors, etc.
So having this in mind, we can see that the sentence clearly used medical terms, so it has to be jargon.
The answer is A. Hope this helps and have a nice day! ;)
A. Citizen is the correct meaning for the italicized root for geopolitics