(B) The units $Fermi$ $(10^{-15} \ m)$,$Micron$ $(10^{-6} \ m)$,and $Light \ year$ $(9.46 \times 10^{15} \ m)$ are all units used to measure length or

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(B) The units $Fermi$ $(10^{-15} \ m)$,$Micron$ $(10^{-6} \ m)$,and $Light \ year$ $(9.46 \times 10^{15} \ m)$ are all units used to measure length or distance. $Debye$ is a unit used to express the electric dipole moment of molecules,not length. Therefore,length cannot be measured by $Debye$.