<h3>I hope this helps...</h3><h3>Acupuncture involves the insertion of very thin needles through your skin at strategic points on your body. A key component of traditional Chinese medicine, acupuncture is most commonly used to treat pain. Increasingly, it is being used for overall wellness, including stress management.
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Traditional Chinese medicine explains acupuncture as a technique for balancing the flow of energy or life force — known as chi or qi (chee) — believed to flow through pathways (meridians) in your body. By inserting needles into specific points along these meridians, acupuncture practitioners believe that your energy flow will re-balance.
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In contrast, many Western practitioners view the acupuncture points as places to stimulate nerves, muscles and connective tissue. Some believe that this stimulation boosts your body's natural painkillers.</h3>
The answer is E
A, B, and D are singular instead of plural.
C is repeating the same words from the beginning of the statement which creates unneccessary repetitiveness.
An advantage would be that it would be first hand knowledge, so you could find out how normal people felt about situations.
A disadvantage would be that they are likely to be biased.
