Final answer:
The climax is option 3, where the second traveler decides to tell the ape king the truth to receive a greater reward, marking the story's turning point. The correct answer is option 3) When the second traveler decides to tell the ape king the truth to receive a greater reward.
Step-by-step explanation:
The climax of a story is the turning point, characterized by the highest tension and conflict. It often leads to a resolution of the main problem or conflict faced by the characters. Based on the given options and understanding of what constitutes a climax, option 3) When the second traveler decides to tell the ape king the truth to receive a greater reward can be identified as the climactic moment.
This decision brings the inherent conflict to a head—whether to lie for personal gain or to tell the truth, possibly risking the reward but also resolving the underlying issue of honesty and integrity that the story has been building towards.