What does the term "breathing rate" mean?
A. The number of breaths taken during a specific period of time.
B. The amount of air that is inhaled into the lungs with each breath.
C. The amount of oxygen traveling in the body during exercise.
D. The change in breathing that occurs as a result of exercise.



Answer :

I believe it is A, as the average breathing rate of an adult is 12-20 breaths per minute.
A. The number of breaths taken during a specific period of time. 

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