What does General Zaroff say is the reason Rainsford has a headache?
O the flickering lights
O the long swim
O the bad food
O the fear of being killed

O The long swim.

Explanation:

Richard Connell's short story The Most Dangerous Game tells the story of how Sanger Rainsford and a savage hunter Colonel Zaroff had their own perceptions of being a hunter. The story follows the protagonist Sanger in his attempts to try to escape the savagery of the Colonel.

After Rainsford had swum to the shore of Ship-Trap island, he walked and got to the mansion of Colonel Zaroff. There, he was given food and clothing. After they had their dinner, the colonel began telling him of his great hunting grounds, the thrill of hunting an animal that can reason and think. As he kept on going about his island and tried to move on to show off his library, Rainsford requested to be excused. At this, Colonel Zaroff accepted that he has had a long swim so he should get some rest.