Read this excerpt from Herman Melville's Moby-D-i-c-k. What characteristic of romantic literature does it contain?

Nature is a source of uncertainty and creativity for humans.

Nature can provide a means to achieve monetary wealth.

Nature works as a tool for introspection and comfort for humans.

Nature challenges humanity to strive for progress and equality.

You didn't give us the the excerpt you're asking about, but I can say very confidently that the answer is most likely A (nature is a source of uncertainty and creativity for humans), since it provides the best description of romantic literature.

B is wrong because the idea of using nature and extracting natural resources actually conflicts with the romantic idea of appreciating nature in its wild state.

C is most likely wrong as well. Romantic literature definitely sees nature as a tool for introspection, but not usually as a tool for comfort. Typically the romantic writers saw nature not as comforting but as being terrifying, exhilarating, even nightmarish. In the first lines of Melville's novel, Ishmael reflects on the sea, which causes him to turn inward but also to fret over the dangers of sailing the ocean.

D is most likely, because even though nature in Melville's novel (the sea, the whale) definitely challenges the characters to achieve a certain kind of progress (collecting oil, making it home alive), it definitely does not challenge them to strive for equality. There are strict social, racial, and class hierarchies on the Pequod, all of which are partly justified by the very real threats posed to the crew by the ocean and the whale.