Answer: A. Measurements in the English system are not accurate.
The reason that the measurement in the English system is not accurate is not true to use metric system rather than English system in science.
Explanation:
Although English system is based upon the measurement of things using body parts or familiar objects, a standard is set to ensure the uniformity of the measurement.
One of the drawbacks of the English system is that different conversion ratio is to be remembered for the different measurement quantities.