What punchline does twain build to in paragraph 4? ( the notorious jumping frog of calaveras county )

The finishing point constructed by Twain is: when the old man is about to finish the story of Jim Smiley's jumping frog, another individual interrupts him. The narrator tries to leave the place, but the old man reaches it. The story ends with the old man who starts telling the narrator about a yellow cow with only one eye of Jim Smiley.

your answer is b. "with strong wording encouraging readers to take action."

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