D. it is safer because no radiation is used
Could be all of these but if I had to choose one, I would go with. Behavioral signs. Hope this helps.
Communicate:
1. Tell them they can trust you and that you want to help.
2. Ask if they are talking to an adult and if they aren't, find a trusted adult they can talk to.
Offer Help:
1. Offer to go to the counselor's office with them.
2. Ask them if they want to go out to get their mind off of things.
Follow Through:
1. Ask maybe the next week how they're feeling and how you can be helping.
2. Ask the counselor of adult they're seeing if they are getting better.
Answer:
с. 60-80% of your maximum heart rate
Explanation:
The "target heart rate" is very important when you want to know how to do your exercise properly <em>without straining your body</em> <em>or relaxing too much. </em>In order to do this, you have to get your<em> "maximum heart rate"</em> first by subtracting your age from 220. The difference will be multiplied by 60% to 85%, depending on the exertion level that you want.
For example, your age is<em> 20</em>. You have to<em> subtract 20 from 220 </em>and that will give you a maximum heart rate of <em>200 beats per minute (bpm).</em> If you want a 60% exertion level, your target heart rate is 120 bpm (200 x 60%).