I belive the answers are:
A, C, and D
Please tell me if Im wrong (I maybe)
B.
A is false because then the younger you are the higher your heart rate.
C is false because heart rate must be a whole number.
D is obviously wrong.
when lifting dont overdo the weight you know you cant lift when lifting lift with your legs not your back because you can put it out and if the object is heavy and its a little sharp use gloves
The answer to your question is D.