What is the basis of the metric system of measurements?

The metric system is a decimal-based system of measurement that is used worldwide, and it is founded on three fundamental units: the kilogram for mass, the meter for length, and the second for time. This system is designed to provide a consistent and coherent framework for measurement, facilitating easy conversion and calculation through its base-10 structure.

The choice of these base units signifies the versatility and practical application of the metric system in various fields, including science, engineering, and everyday measurement. The kilogram is the standard unit of mass, the meter is the standard unit of length, and the second is the standard unit of time, all of which can be easily multiplied or divided by factors of ten, making it user-friendly.

The other options incorporate units that either mix different systems or do not fully represent the foundational principles of the metric system. For example, elements like the pound or the mile pertain to the imperial system, which is less uniform than the metric system. Ultimately, the correct choice encapsulates the essence of the metric system, promoting standardization and simplification in measurement across various disciplines.