The answer would be B-when using drugs (prescription or not) a person can become addicted.
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It is important to stretch before exercising because for example if you were to be doing a strenuous workout it causes the blood vessels in your legs to expand. Which then causes more blood into your legs and feet. If you were to stop after a while of exercising your heart rate slows down and blood can pool into your lower body which could cause you to possibly faint.
Harsh or vigorous movements can be detected as disrespectful or have rude intentions.In a calmly and non-abrasive manner simply easing simple things such as the number of pointing and hand to face interaction that is done can decrease your chances of being disrespectful with a client .