The actual answer is D because risk factors are anything that increases the risk of someone getting sick or disease
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True, (sorry my answer needs to be 20 characters long so just ignore this part lol hope that helped)
Answer:
<em><u>Moderate</u></em> physical activity refers to activities equivalent in intensity to brisk walking or bicycling.
<em><u>Vigorous</u></em> physical activity produces large increases in breathing or heart rate, such as jogging, aerobic dance or bicycling uphill.