Which of the following is not an advantage of the International System of Units ( the metric system )
A. Having all the scientists in the world use one system makes it easier to communicate results
B. The metric units for mass, volume, and length can all be easily related to each other
C. People in the United States are used to these measurements in day to day use
D. All the units are based on 10, so converting from small units to large units is simple