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Osteoporosis is a disease in which removes some of the material in the bones. This weakens the bones so that they break easily.
Doctors often advise people with osteoporosis to exercise regularly.
What is the most likely reason for this advice?
OA. Regular exercise often makes the muscles weaker.
OB. Regular exercise helps the body maintain strong bones.
OC. Many people break bones while exercising.
OD. Many people like to exercise by walking.
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