During allergic reactions, which of the following is produced?

Options :
  1. Heparin
  2. Histamine
  3. Serotonin
  4. Celestamine
Answer and Explanation :-

Answer: Option 2

Explanation:

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Why is it the songs all end with the good people winning, but in life they don't?"They don't make songs when the good lose," I muttered. "They make war chants against the bad. So there won't be any songs for us.
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