Exposure to noise pollutant causes

Options :
  1. increased heart beat
  2. constriction of blood vessels
  3. dialation of pupil
  4. all the above
Answer and Explanation :-

Answer: Option 4

Explanation:

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It is the beginning of wisdom when you recognize that the best you can do is choose which rules you want to live by, and it's persistent and aggravated imbecility to pretend you can live without any.
-Wallace Stegner All the Little Live Things