If L and R denote inductance and resistance, respectively, then the dimensions of L/R are 

• A

  ${\mathrm{M}}^1{\mathrm{L}}^0{\mathrm{T}}^0{\mathrm{Q}}^{-1}$

• B

  ${\mathrm{M}}^0{\mathrm{L}}^0{\mathrm{TQ}}^0$

• C

  ${\mathrm{M}}^0{\mathrm{L}}^1{\mathrm{T}}^{-1}{\mathrm{Q}}^0$

• D

  ${\mathrm{M}}^{-1}{\mathrm{LT}}^0{\mathrm{Q}}^{-1}$