The answer is B.Start running in hilly areas or trails. Hope this helps!
Measure your heart rate before, during and after work outs and write it down. Monitors can be worn as a strap across the chest, on the wrist and even on the head, and by measuring your heart rate can help you exercise at the right intensity. Most don't have a display, so you'll need to connect your monitor with a sports watch or smartphone app to see your heart rate.
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nothing is there
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what pie chart are you telling
Answer:
They must be cooled, wrapped in plastic or put into clean containers, and labeled.
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