What is the basic unit for measuring length in the metric system?

In the metric system, the basic unit for measuring length is the meter. It is a fundamental unit that is universally accepted in science and engineering, allowing for consistent and precise measurements. The meter is used as the standard unit from which other metric units are derived, such as centimeters (one meter equals 100 centimeters) and kilometers (one kilometer equals 1,000 meters).

In contrast, the other options represent units that belong to the imperial system of measurement, which includes feet, inches, and yards. These units are less commonly used in scientific contexts compared to the metric system, particularly in international scientific communications where the meter is the standard reference for length. Using the meter helps ensure clarity and accuracy in measurements across different fields of study and applications.