In order to calculate your target heart rate, you must figure out your resting heart rate.
So {A} would be the best answer.
The correct answer is B. According to the American Cancer Society, tobacco poses the greatest risk for developing cancers. It was estimated that there is a 22% deaths per year due to cancer caused by tobacco use. During 2004, about 1.6 million deaths were recorded due to cancer.
Heavier weights and decrease repetitions.
your answer would be A heart attack