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The asnwer is C- getting approval from one's doctor.
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Getting approval from one's doctor
Marathon
The definition of MARATHON is a long-distance race run on an open course usually ranging 26 miles 385 yards (42.2 kilometers).
Approval from doctor
While health specialists claim that marathons have numerous health benefits, some major health hazards may not be identified until the middle of the race. So it is important to getting approval from doctor for marathon preparation.
Thus, Getting approval from one's doctor
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