Answer:
His to decision to play the game with Zaroff advances the plot because:
B) It advances the main conflict within the story and pushes the story's action / tension forward.
Step-by-step explanation:
Rainsford and Zaroff are characters in the short story "The Most Dangerous Game" by Richard Connell. They are both hunters, but General Zaroff has developed a taste for hunting and killing other men. According to him, men are the most dangerous game (prey) since, unlike a regular beast, they have the capacity to reason.
After Rainsford accidentally lands in his island after falling off a yatch, Zaroff invites him to hunt men. Rainsford decides not to do it; he sees such hobby as murder, and will not condone with it. That decision advances the plot, transforming him into the general's new prey. Tension is added to the story as Rainsford is hunted for a couple of days, having nothing but some food and a hunting knife. Zaroff has hound dogs and a gun, as well as knowledge of the island's topography. In the end, Rainsford jumps into the ocean from a cliff, swims back to Zaroff's mansion, hides in the general's bedroom, and then kills him during a fight.