The figure of speech used in the phrase "babes of the sea" is (D) a metaphor. A metaphor is a figure of speech that consists in a comparison. This comparison is made between two things that are not related but have a certain characteristic in common. In this case, "babes" is not used in its original meaning but the author refers to his feeling of insignificance when compared to the nature.
Wanna know what I call nonfiction text?
Real News
Not Cap
Reliable Text
But for real, nonfiction text is text that are not fake, since it's nonfiction
A good way to know the difference is by remembering fiction is fake, and non means not, so Nonfiction is Not Fake