All except for D, that could be very damaging
<span>The best way for athletes to sustain a safe and sensible loss of body fat is to C. reduce calorie intake moderately and modify their training program.
A is incorrect because just sticking to a certain diet, be it a low-calorie diet or some other one, is not enough, as there have to be some changes in the training routine as well. B is not going to help much with the loss of body fat. D is incorrect because fluid intake should never be reduced.
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I believe it is C because that is mostly what ethics is.
<span>Drinking very large amounts of water over a short period of time may be fatal.</span>