I’m sorry if this is wrong and plus I’m not completely sure but I am going to say C
A. Measure your heart rate before, and after workouts
Both A and B are correct.
<span><span>
NIOSH, or the National Institute for Occupational Safety and Health, is the U.S.
</span><span>
federal agency responsible for conducting research and making recommendations
</span><span>
for the prevention of work-related injury and illness.It might be considered a
</span><span>
sister agency of OSHA, since both were created by passage of the Occupational
</span><span>
Safety and Health Act.
</span></span>
