The one that is a base unit is the kilogram. The correct option is B.
What is an SI base unit?
The International System of Units (SI) basic units is the standard units of measurement for the seven base values. There are seven types of SI units.
- Length - meter (m)
- Time - second (s)
- Amount of substance - mole (mole)
- Electric current - ampere (A)
- Temperature - kelvin (K)
- Luminous intensity - candela (cd)
- Mass - kilogram (kg)
The SI units are used to represent what kind of value that is written. It is written after the value. Like 20 kg shows the mass of an object.
The SI unit of mass is the kilogram (kg). It is determined by assuming that the Planck constant h has a fixed numerical value of 6.626070151034 when expressed in the unit J s.
Thus, the correct option is B, kilogram.
To learn more about SI base unit, refer to the below link:
https://brainly.com/question/14480063
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