Answer:
B. Red Chief returns to camp.
Step-by-step explanation:
O. Henry's short story "The Ransom of Red Chief" revolves around two petty criminals and their failed attempt in trying to get money from kidnapping a rich man's son. But contrary to their expectation, things did not go well and the story hilariously ends with these criminals instead paying the father for the return of his kidnapped son.
After the small kid, Johnny Dorset was taken to the cave to hide out, he renamed himself Red Chief and made Bill play with him as Indians. But with the 'intensity' of their game and the 'hyper-activeness' of the young boy, Bill became so wearied and wanted nothing more to do with the boy. So, while the narrator Sam went to the post office to mail the letter of ransom, Bill was left to keep Johnny entertained. It was during this time that he 'tried' to return Johnny but with no success. Johnny had followed him back to the camp, without the knowledge of Bill.
Thus, the correct answer is option B.