Answer:
the purpose of the lottery has remained the same. The town gathers to draw lots and determine who dies. Some parts of that ritual have changed over the years, though, including the box from which the lots are drawn and the ceremony...
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Answer:
With the text it sounds like the father has died... so "c." seems appropriate.
Answer: Honeymoon
You could assert that from the story opening where he is enjoying lunch with his wife. The other answers do not work since he is clearly not there for a conference. Wedding is misleading since he just got married. And medical procedure does not work at all.