14. As a beginner engaging in a physical activity, you must know your target heart rate, before starting a workout. Which of the following shows the steps to get your target heart rate?
a. Calculate MHR (220- Age) find the high end 80%, find the low end 50%
b. Calculate MHR (220- Age) find the low end 50%, find the high end 85%
c. Calculate MHR (220- Age) find the high end 85%, find the low end 50%
d. Calculate MHR (220- Age) find the high end 80%, find the low end 40%

15. During physical education and health class, your teacher asks you to compute for your Body Mass Index and your BMI classification. Your BMI is 23.9. In which BMI classification do you fall?
a. Underweight
b. Average
c. Obese
d. Overweight

16.1. Which of the following groups is the MOST susceptible to heat illness?
A. the elderly
B. the highly fit
C. high school students
D. those jogging by themselves

17.Heat injury can occur when the activity heat load exceeds the body's ability to regulate body temperature. Which of the following is not a common type of heat injury?
A. heat stroke
B. heat exhaustion
C. heat cramps
D. heat evaporation​