Answer: ( might not be right) A. The metric system is more accurate.
Explanation: As I said, I don't know if this is right. but based on what I know, our measurements have less than that of the metric system. to stop any type of confusion or mishaps on the work field in medical... health care professionals will use the more precise amount. if you use too much you risk over doing something for a patient, with medicine that can be fatal. underdoing it and you don't have the required amount needed to help with treatment. so with my little knowledge I place my bet on A. The metric system is more accurate.