The correct option is A). My experience with my dog has taught me to never give up hope.
The ending of the story forms a final expression over the readers what they have read and make the readers feel that the story is coming to its end.
The conclusive words and the consequences must be appear in the climax of the story as it reveals the conclusion of the it.
Option A) consists the moral and conclusive words in it, rest the other sentences do not have the tone of finality.
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