PLZ HELP!! SO CONFUSED!! 
 Sylvia, a 12 year old girl, has a resting heart rate of 58 beats per minute. Using the lower and upper limit reserve training percentages of 50% and 85% respectively, what is Sylvia’s target heart rate range?
 (A) 104-176 beats per minute
 (B) 133-185.5 beats per minute
 (C) 162-208 beats per minute
 (D) 176-208.5 beats per minute