It will be the second one I did that last year
I think its D because it says paths of sea currents are paths or the sea
"like an arrow presently to his home in the green world beneath"
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.
