Answer:
Making decisions will always be difficult because it takes time and energy to weigh your options. Things like second-guessing yourself and feeling indecisive are just a part of the process. In many ways, they're a good thing—a sign that you're thinking about your choices instead of just going with the flow.
Explanation:
It's more accurate, especially since heart rate is almost universally measures in beats-per-minute, than, say, timing your pulse for a [factor of 60] seconds (30 seconds, 20 seconds, 15 seconds, 12 seconds, etc.).
A.Nylon because nylon is a chemical that is bad if you put it on your skin when it's cold