The answer is B. "He asked himself where it had come from and how; the past provided no explanation, and the future could not justify it."
This option is not a dark humor because it does not show the opposite side of happiness. The other choices explain that although there is happiness, he considered it as a burden- making it a dark humor.
Answer: “Our”
Explanation: A possessive pronoun is a pronoun indicating possession, for example mine, yours, hers, theirs. (In this case, it’s the word “ours”)
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