Respuesta :
I believe the answer is C. The level of exertion at which you are exercising
Answer: C) The level of exertion at which you are exercising.
Explanation: Borg's Scale is used for rating and evaluation of the perceived exertion while doing any exercise and other related physical activities. It calculates the intensity rate with which a person is exercising. Evaluation is done on the basis of heart rate .
Other options are not correct because Borgs's scale is not related to calculation of rate of heart and recovery speed.
Thus, the correct option is option(C).
