The correct answer is B) He leaves the wedding party, stunned by the tale he hears. As it happened, the wedding man actually went home in the end, instead of going to the wedding. Although the story did make him unhappy, he was satisfied to have become wiser, that is why the last line describes him as a sadder and a wiser man.
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I believe from what I see that every sentence has been turned from present tense to past tense. One example could be Number 5- Instead of, 'Peter is going to take the package later.", it could be in past tense, as in Peter already took the package- "Later, Peter took the package."
Hope this helped. Let me know if you have any more questions!