I believe that the answer is b. False because just because you don't have any symptoms doesn't mean you never will. For example, I never caught the flu in my childhood. But that doesn't mean I never will.
I would say it would be D or A. Im not quite sure, but you can workout hard without getting injured so my best bet would be D.
C, when you’ve sat still for a few minutes. Your resting heart rate is your heart rate when you’re not moving, so this would be the optimal time.
Ken has 17 nickels and 8 dimes.
(.05)(N)+(.10)(D)=1.65