Height- weight charts are used to calculate the body mass index of the person to see how healthy they are. Being cost-efficient is not a negative aspect of the height weight chart. Thus, option C is correct.
A height weight chart is used to measure the growth factors like the height and weight of the person to compare it with the regular parameters to determine the body condition.
It does not provide information about the fat and muscle content and percentage in the body and is a negative aspect. The method being cost-effective is not negative but rather positive as it can be easily used by everyone.
Therefore, the cost efficiency of the chart is not a negative aspect.
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