Your answer is...
D. Abstinence
I learned it in health class...
A) Less than 60 BPM.
A normal resting heart rate for the average adult is 60 to 100 beats per minute (bpm) or 40 to 60 bpm for highly conditioned athletes. If you're sedentary most of the day, your RHR likely approaches or exceeds the top end of this range. This may be because your heart is less efficient.
145*F is the minimum internal temperature that the lamb must reach.
D, by allowing that they never engage in risky behaviors. Knowledge about health can help people understand why some things are risk and why some things aren't.