Why would an author most likely begin a story in medias res

coin toss of the tosses to the toss

i think it may be b, i'm not exactly too sure on this. but b seems to make more sense.

one of the central themes of edward abbey's work has been his staunch opposition to the glen canyon dam on the colorado river that created lake powell, destroying stunning scenery and wildlife habitat, endangering many rare species of fish and animals, and also irreparably destroying many important archaeological sites which provided information about the early inhabitants of the united states.