A. 72 per minute
B. 12 to 20 per minute
C. 38 per minute
D. None of these
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The correct answer to the question: "The breathing rate in human being_____________?" is "12 to 20 per minute".
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
