The best option is: "C. conflict, rising action, and climax".
Explanation:
Letter A is not possible because "exposition" and "conclusion" are not narrative marks for the plot of the story. Letter B is also not possible for "conclusion" is not a narrative mark for the plot, although the falling action may be. Letter D is not possible at all, because "claims", "evidence", and "counterclaims" are not part of the plot, they are part of other parts of the story, such as the introduction or the context development. Letter C is the best asnswer because each characteristic is really emphasizing steps which are part of plot building and narrative marks.
Commensalism is a type of symbiotic relationship where one party benefits and the other party is not significantly affected. A hermit crab takes over a discarded shell of a snail and uses it for his house. The hermit crab benefits and the snail are not affected - it's already discarded the shell and is nowhere around.
