Let \([{\varepsilon _0}] \)denote the dimensional formula of the permittivity of vacuum. If M = mass, L = length, T = time and A = electric current, then:

A) \({\varepsilon _0} = \left[ {{M^{ - 1}}{L^{ - 3}}{T^2}A} \right]\)

B) \({\varepsilon _0} = \left[ {{M^{ - 1}}{L^{ - 3}}{T^4}{A^2}} \right]\)

C) \({\varepsilon _0} = \left[ {{M^1}{L^2}{T^1}{A^2}} \right]\)

D)\( {\varepsilon _0} = \left[ {{M^1}{L^2}{T^1}A} \right]\)