I think it might be C but i maybe wrong
The term would be man vs. nature.
Man vs. Nature is when the character is against the forces of nature.
C. The main idea is the primary point of a piece of writing :)
The organic materials most commonly used to improve soil conditions and fertility include farm yard manure (FYM), animal wastes, crop residues, urban organic wastes (either as such or composted), green manures, bio-gas spent slurry, microbial preparations, vermicompost and biodynamic preparations.
C) Kerouac’s use of syntax gives his writing the natural ease and flow of informal conversation.
