If we're talking about ethos, pathos, or logos, the answer is ethos
The answer is allegory, since allegory is a rhetorical device that convey hidden meanings through symbolic figures in a literary piece which create the meaning the author wants to portray. It is in a form of story or poem and the meaning could be political or moral, depending on the author's true meaning.
Don't quote me on this, but it might be C
<span>The continents were once one large land mass
This seems most likely since geology focuses on rocks, etc. </span>